Chapter: Unit 2: At the Shop, Counting - Making Requests
đ Vocabulary
English for Today Class Four
â Most Important Exam Words
erasercrayonspencil casepapersharpenersalespersonhelpanything elsealtogetherchangeborrowusecouldpleasesuresorryone hundredtwenty-twotwo hundred and twenty-fivethree hundred and sixty-ninefour hundred and fifty-sevenzebrajeepjumpzoobuzz
đ Word Formation Rules
âē Add -er to sharpen to form sharpener, meaning a thing used for sharpening.
âē Pencil case is a compound noun formed from pencil + case.
âē Salesperson is a compound noun formed from sales + person.
âē Add -s to most countable nouns to make the plural: pen â pens, pencil â pencils, eraser â erasers.
âē Use -es after words ending in s, sh, ch, x, or z: brush â brushes, box â boxes.
âē Borrow and lend have opposite meanings: borrow means take temporarily, while lend means give temporarily.
âē Buy and sell are opposites used in shopping vocabulary.
âē Use a piece of with uncountable nouns such as paper: a piece of paper.
âē Numbers from twenty-one to ninety-nine are generally written with a hyphen: twenty-two, forty-eight, sixty-nine.
âē The plural form of hundred is not used after a specific number: three hundred, not three hundreds.
1. At the Shop: School Items (8 words)
eraser[/ÉĒËreÉĒzÉr/]nouneasy
Meaning: āϰāĻžāĻŦāĻžāϰ; āϞā§āĻāĻžāϰ āĻĻāĻžāĻ āĻŽā§āĻā§ āĻĢā§āϞāĻžāϰ āĻāĻŋāύāĻŋāϏ
Alt: āĻŽā§āĻā§ āĻĢā§āϞāĻžāϰ āĻāĻĒāĻāϰāĻŖ
Example: I need an eraser.
Syn: rubber
đĄ Exam tip: Eraser is a countable noun: an eraser, two erasers.
crayons[/ËkreÉĒÉnz/]nouneasy
Meaning: āϰāĻ āĻĒā§āύā§āϏāĻŋāϞ
Alt: āĻāĻŦāĻŋ āĻāĻāĻāĻžāϰ āϰāĻāĻŋāύ āĻŽā§āĻŽ-āĻĒā§āύā§āϏāĻŋāϞ
Example: Mina has a box of crayons.
Syn: colour pencils
đĄ Exam tip: Crayons is usually used in the plural form.
pencil case[/ËpensÉl keÉĒs/]nouneasy
Meaning: āĻĒā§āύā§āϏāĻŋāϞ āϰāĻžāĻāĻžāϰ āĻŦāĻžāĻā§āϏ āĻŦāĻž āĻĨāϞā§
Alt: āϞā§āĻāĻžāϰ āϏāϰāĻā§āĻāĻžāĻŽ āϰāĻžāĻāĻžāϰ āĻĒāĻžāϤā§āϰ
Example: My pencil case is blue.
Syn: pen case
đĄ Exam tip: Pencil case is a compound noun made from pencil and case.
paper[/ËpeÉĒpÉr/]nouneasy
Meaning: āĻāĻžāĻāĻ
Alt: āϞā§āĻāĻž āĻŦāĻž āĻāĻāĻāĻžāϰ āĻĒāĻžāϤāĻž
Example: Please give me a piece of paper.
Syn: sheet
đĄ Exam tip: Say a piece of paper, not a paper, when referring to one sheet.
sharpener[/ËĘÉËrpÉnÉr/]nouneasy
Meaning: āĻĒā§āύā§āϏāĻŋāϞ āĻāĻžāĻāĻžāϰ āϝāύā§āϤā§āϰ
Alt: āĻĒā§āύā§āϏāĻŋāϞā§āϰ āĻŽāĻžāĻĨāĻž āϧāĻžāϰ āĻāϰāĻžāϰ āĻāĻĒāĻāϰāĻŖ
Example: Can I use your sharpener?
Syn: pencil sharpener
đĄ Exam tip: Sharpener comes from the verb sharpen.
pen[/pen/]nouneasy
Meaning: āĻāϞāĻŽ
Alt: āĻāĻžāϞāĻŋ āĻĻāĻŋāϝāĻŧā§ āϞā§āĻāĻžāϰ āϝāύā§āϤā§āϰ
Example: I would like two pens.
Syn: ballpoint
đĄ Exam tip: Use pens after numbers greater than one.
pencil[/ËpensÉl/]nouneasy
Meaning: āĻĒā§āύā§āϏāĻŋāϞ
Alt: āĻā§āϰāĻžāĻĢāĻžāĻāĻ āĻĻāĻŋāϝāĻŧā§ āϞā§āĻāĻžāϰ āϏāϰāĻā§āĻāĻžāĻŽ
Example: She bought a pencil.
đĄ Exam tip: The plural form of pencil is pencils.
item[/ËaÉĒtÉm/]nounmedium
Meaning: āĻāĻŋāύāĻŋāϏ; āĻĒāĻŖā§āϝ
Alt: āϤāĻžāϞāĻŋāĻāĻžāϰ āĻāĻāĻāĻŋ āĻŦāϏā§āϤā§
Example: There are five items in my bag.
Syn: thing, article
đĄ Exam tip: Item is useful in questions about things bought from a shop.
2. Shop Conversation (8 words)
salesperson[/ËseÉĒlzËpÉËrsÉn/]nounmedium
Meaning: āĻŦāĻŋāĻā§āϰāϝāĻŧāĻāϰā§āĻŽā§; āĻĻā§āĻāĻžāύā§āϰ āĻŦāĻŋāĻā§āϰā§āϤāĻž
Alt: āϝāĻŋāύāĻŋ āĻĻā§āĻāĻžāύ⧠āĻĒāĻŖā§āϝ āĻŦāĻŋāĻā§āϰāĻŋ āĻāϰā§āύ
Example: The salesperson helped Tania.
Syn: shopkeeper, sellerAnt: customer
đĄ Exam tip: Salesperson may refer to either a man or a woman.
help[/help/]verbeasy
Meaning: āϏāĻžāĻšāĻžāϝā§āϝ āĻāϰāĻž
Alt: āĻāĻžāĻ āϏāĻšāĻ āĻāϰ⧠āĻĻā§āĻāϝāĻŧāĻž
Example: Can I help you?
Syn: assist, aidAnt: hinder
đĄ Exam tip: Can I help you? is a polite question used by a shop assistant.
like[/laÉĒk/]verbeasy
Meaning: āĻĒāĻāύā§āĻĻ āĻāϰāĻž; āĻāĻžāĻāϤā§
Alt: āĻāĻā§āĻāĻž āĻĒā§āϰāĻāĻžāĻļ āĻāϰāĻž
Example: I would like a pencil case.
Syn: want, preferAnt: dislike
đĄ Exam tip: I would like is more polite than I want in a shop.
anything[/ËeniθÉĒÅ/]nounmedium
Meaning: āĻāĻŋāĻā§; āϝā§āĻā§āύ⧠āĻāĻŋāĻā§
Alt: āĻā§āύ⧠āĻ
āϤāĻŋāϰāĻŋāĻā§āϤ āĻāĻŋāύāĻŋāϏ
Example: Is there anything else?
Syn: somethingAnt: nothing
đĄ Exam tip: Anything is commonly used in questions and negative sentences.
else[/els/]advmedium
Meaning: āĻ
āύā§āϝ; āĻāϰ
Alt: āĻ
āϤāĻŋāϰāĻŋāĻā§āϤ āĻŦāĻž āĻāĻŋāύā§āύ āĻāĻŋāĻā§
Example: Would you like anything else?
Syn: additional, otherAnt: same
đĄ Exam tip: Anything else means any other thing.
altogether[/ËÉËltÉËÉĄeðÉr/]advmedium
Meaning: āϏāĻŦ āĻŽāĻŋāϞāĻŋāϝāĻŧā§
Alt: āĻŽā§āĻ āĻšāĻŋāϏāĻžāĻŦā§
Example: That is 180 taka altogether.
Syn: in total, togetherAnt: separately
đĄ Exam tip: Altogether is used to state the total price or amount.
here[/hÉĒÉr/]adveasy
Meaning: āĻāĻāĻžāύā§
Alt: āĻāĻ āϏā§āĻĨāĻžāύ⧠āĻŦāĻž āĻāĻ āĻŽā§āĻšā§āϰā§āϤā§
Example: Here you are.
Syn: in this placeAnt: there
đĄ Exam tip: Here you are is used when giving something to someone.
come[/kĘm/]verbeasy
Meaning: āĻāϏāĻž
Alt: āĻā§āύ⧠āϏā§āĻĨāĻžāύ⧠āĻāĻĒāϏā§āĻĨāĻŋāϤ āĻšāĻāϝāĻŧāĻž
Example: Please come again.
Syn: arrive, approachAnt: go, leave
đĄ Exam tip: Come again is a friendly expression used by shopkeepers.
3. Money and Shopping (8 words)
taka[/ËtÉËkÉ/]nouneasy
Meaning: āĻāĻžāĻāĻž; āĻŦāĻžāĻāϞāĻžāĻĻā§āĻļā§āϰ āĻŽā§āĻĻā§āϰāĻž
Alt: āĻŽā§āϞā§āϝ āĻĒāϰāĻŋāĻļā§āϧā§āϰ āĻ
āϰā§āĻĨ
Example: The bag costs 200 taka.
Syn: money, currency
đĄ Exam tip: Taka is the currency of Bangladesh.
price[/praÉĒs/]nounmedium
Meaning: āĻĻāĻžāĻŽ; āĻŽā§āϞā§āϝ
Alt: āĻā§āύ⧠āĻāĻŋāύāĻŋāϏ āĻāĻŋāύāϤ⧠āϝ⧠āĻ
āϰā§āĻĨ āϞāĻžāĻā§
Example: What is the price of this pencil?
Syn: cost, value
đĄ Exam tip: Price is a noun, while cost can be a noun or a verb.
cost[/kÉst/]verbmedium
Meaning: āĻĻāĻžāĻŽ āĻšāĻāϝāĻŧāĻž
Alt: āĻŽā§āϞā§āϝ āύāĻŋāϰā§āϧāĻžāϰāĻŋāϤ āĻĨāĻžāĻāĻž
Example: The pencil costs ten taka.
Syn: be priced at
đĄ Exam tip: Use costs with he, she, it, or a singular noun.
pay[/peÉĒ/]verbeasy
Meaning: āĻĒāϰāĻŋāĻļā§āϧ āĻāϰāĻž
Alt: āĻā§āύ⧠āĻāĻŋāĻā§āϰ āĻĻāĻžāĻŽ āĻĻā§āĻāϝāĻŧāĻž
Example: I will pay for the books.
Syn: settle, giveAnt: owe
đĄ Exam tip: Pay is followed by for when mentioning the thing bought.
gave[/ÉĄeÉĒv/]verbmedium
Meaning: āĻĻāĻŋāϝāĻŧā§āĻāĻŋāϞ; āĻĻāĻŋāϞ
Alt: give-āĻāϰ āĻ
āϤā§āϤ āϰā§āĻĒ
Example: You gave me 200 taka.
Syn: handed, offeredAnt: took
đĄ Exam tip: Gave is the past form of give.
change[/tĘeÉĒndĘ/]nouneasy
Meaning: āĻĢā§āϰāϤ āĻāĻžāĻāĻž
Alt: āĻŦā§āĻļāĻŋ āĻĻā§āĻāϝāĻŧāĻž āĻāĻžāĻāĻžāϰ āĻ
āĻŦāĻļāĻŋāώā§āĻ āĻ
āĻāĻļ
Example: Here is your change.
Syn: balance, remainder
đĄ Exam tip: In a shop, change means money returned after payment.
buy[/baÉĒ/]verbeasy
Meaning: āĻā§āύāĻž
Alt: āĻ
āϰā§āĻĨā§āϰ āĻŦāĻŋāύāĻŋāĻŽāϝāĻŧā§ āĻā§āύ⧠āĻāĻŋāύāĻŋāϏ āύā§āĻāϝāĻŧāĻž
Example: Tania wants to buy some paper.
Syn: purchaseAnt: sell
đĄ Exam tip: Buy is irregular; its past form is bought.
sell[/sel/]verbeasy
Meaning: āĻŦāĻŋāĻā§āϰāĻŋ āĻāϰāĻž
Alt: āĻ
āϰā§āĻĨā§āϰ āĻŦāĻŋāύāĻŋāĻŽāϝāĻŧā§ āĻĒāĻŖā§āϝ āĻĻā§āĻāϝāĻŧāĻž
Example: The shop sells school items.
Syn: trade, marketAnt: buy
đĄ Exam tip: The person who sells is a seller or salesperson.
4. Making Requests (8 words)
request[/rÉĒËkwest/]nounmedium
Meaning: āĻ
āύā§āϰā§āϧ
Alt: āĻāĻĻā§āϰāĻāĻžāĻŦā§ āĻāĻŋāĻā§ āĻāĻžāĻāϝāĻŧāĻž
Example: Her request was polite.
Syn: appeal, pleaAnt: refusal
đĄ Exam tip: A request asks someone politely to do or give something.
excuse[/ÉĒkËskjuËz/]verbeasy
Meaning: āĻā§āώāĻŽāĻž āĻāϰāĻŦā§āύ; āĻĻāϝāĻŧāĻž āĻāϰ⧠āĻļā§āύā§āύ
Alt: āĻāĻžāϰāĻ āĻŽāύā§āϝā§āĻ āĻāĻĻā§āϰāĻāĻžāĻŦā§ āĻāĻāϰā§āώāĻŖ āĻāϰāĻž
Example: Excuse me, can I borrow your eraser?
Syn: pardon
đĄ Exam tip: Excuse me is used before a polite question or request.
borrow[/ËbÉroĘ/]verbmedium
Meaning: āϧāĻžāϰ āύā§āĻāϝāĻŧāĻž
Alt: āĻāĻŋāĻā§ āϏāĻŽāϝāĻŧā§āϰ āĻāύā§āϝ āĻ
āύā§āϝā§āϰ āĻāĻŋāύāĻŋāϏ āύā§āĻāϝāĻŧāĻž
Example: Can I borrow your pen?
Syn: take temporarilyAnt: lend, return
đĄ Exam tip: Borrow means take from someone; lend means give to someone.
use[/juËz/]verbeasy
Meaning: āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻāϰāĻž
Alt: āĻā§āύ⧠āĻāĻŋāύāĻŋāϏ āĻāĻžāĻā§ āϞāĻžāĻāĻžāύā§
Example: Can I use your sharpener?
Syn: employ, utilizeAnt: neglect
đĄ Exam tip: Use can be followed by a noun: use a pencil.
could[/kĘd/]verbmedium
Meaning: āĻĒāĻžāϰāϤāĻžāĻŽ; āĻĒāĻžāϰāĻŦā§āύ āĻāĻŋ
Alt: āĻāĻĻā§āϰāĻāĻžāĻŦā§ āĻ
āύā§āϰā§āϧ āĻāϰāĻžāϰ āϏāĻšāĻžāϝāĻŧāĻ āĻā§āϰāĻŋāϝāĻŧāĻž
Example: Could I have some paper, please?
Syn: might, would
đĄ Exam tip: Could makes a request more polite than Can in many situations.
please[/pliËz/]adveasy
Meaning: āĻĻāϝāĻŧāĻž āĻāϰā§
Alt: āĻāĻĻā§āϰ āĻ
āύā§āϰā§āϧ āĻŦā§āĻāĻžāϤ⧠āĻŦā§āϝāĻŦāĻšā§āϤ āĻļāĻŦā§āĻĻ
Example: Give me a pencil, please.
Syn: kindly
đĄ Exam tip: Please may come at the beginning or end of a request.
sure[/ĘĘÉr/]adjeasy
Meaning: āύāĻŋāĻļā§āĻāĻŋāϤ; āĻ
āĻŦāĻļā§āϝāĻ
Alt: āϏāĻŽā§āĻŽāϤāĻŋ āĻĒā§āϰāĻāĻžāĻļā§āϰ āĻļāĻŦā§āĻĻ
Example: Sure. Here you are.
Syn: certain, of courseAnt: uncertain
đĄ Exam tip: Sure can be used as a friendly reply to a request.
sorry[/ËsÉri/]adjeasy
Meaning: āĻĻā§āĻāĻāĻŋāϤ
Alt: āĻ
āĻā§āώāĻŽāϤāĻž āĻŦāĻž āĻĻā§āĻāĻ āĻĒā§āϰāĻāĻžāĻļā§āϰ āĻļāĻŦā§āĻĻ
Example: I am sorry, but I do not have a sharpener.
Syn: apologetic, regretfulAnt: glad
đĄ Exam tip: Sorry can politely introduce a negative answer.
5. Numbers and Counting (8 words)
one hundred[/wĘn ËhĘndrÉd/]nouneasy
Meaning: āĻāĻāĻļ
Alt: ā§§ā§Ļā§Ļ āϏāĻāĻā§āϝāĻžāĻāĻŋ
Example: There are one hundred books.
Syn: 100
đĄ Exam tip: Use hundred without s after a specific number: two hundred.
twenty-two[/Ëtwenti ËtuË/]nouneasy
Meaning: āĻŦāĻžāĻāĻļ
Alt: ⧍⧍ āϏāĻāĻā§āϝāĻžāĻāĻŋ
Example: I have twenty-two crayons.
Syn: 22
đĄ Exam tip: Numbers from twenty-one to ninety-nine are hyphenated when written in words.
one hundred and one[/wĘn ËhĘndrÉd ÃĻnd wĘn/]nounmedium
Meaning: āĻāĻāĻļ āĻāĻ
Alt: ā§§ā§Ļā§§ āϏāĻāĻā§āϝāĻžāĻāĻŋ
Example: The number after one hundred is one hundred and one.
Syn: 101
đĄ Exam tip: Use and between hundreds and tens or units in British English.
two hundred and twenty-five[/tuË ËhĘndrÉd ÃĻnd Ëtwenti ËfaÉĒv/]nounmedium
Meaning: āĻĻā§āĻāĻļ āĻĒāĻāĻāĻŋāĻļ
Alt: ⧍⧍ā§Ģ āϏāĻāĻā§āϝāĻžāĻāĻŋ
Example: The shop has two hundred and twenty-five pencils.
Syn: 225
đĄ Exam tip: Write twenty-five with a hyphen.
two hundred and forty-eight[/tuË ËhĘndrÉd ÃĻnd ËfÉËrti ËeÉĒt/]nounmedium
Meaning: āĻĻā§āĻāĻļ āĻāĻāĻāϞā§āϞāĻŋāĻļ
Alt: ⧍ā§Ēā§Ž āϏāĻāĻā§āϝāĻžāĻāĻŋ
Example: The answer is two hundred and forty-eight.
Syn: 248
đĄ Exam tip: Forty is spelled without a u; do not write fourty.
three hundred and eleven[/θriË ËhĘndrÉd ÃĻnd ÉĒËlevÉn/]nounmedium
Meaning: āϤāĻŋāύāĻļ āĻāĻāĻžāϰā§
Alt: ā§Šā§§ā§§ āϏāĻāĻā§āϝāĻžāĻāĻŋ
Example: Three hundred and eleven is an odd number.
Syn: 311
đĄ Exam tip: Eleven is an irregular number word and is not hyphenated.
three hundred and sixty-nine[/θriË ËhĘndrÉd ÃĻnd ËsÉĒksti ËnaÉĒn/]nounmedium
Meaning: āϤāĻŋāύāĻļ āĻāύāϏāϤā§āϤāϰ
Alt: ā§Šā§Ŧ⧝ āϏāĻāĻā§āϝāĻžāĻāĻŋ
Example: The number is three hundred and sixty-nine.
Syn: 369
đĄ Exam tip: Sixty-nine is written with a hyphen.
four hundred and fifty-seven[/fÉËr ËhĘndrÉd ÃĻnd ËfÉĒfti ËsevÉn/]nounmedium
Meaning: āĻāĻžāϰāĻļ āϏāĻžāϤāĻžāύā§āύ
Alt: ā§Ēā§Ģā§ āϏāĻāĻā§āϝāĻžāĻāĻŋ
Example: The shop sold four hundred and fifty-seven notebooks.
Syn: 457
đĄ Exam tip: Fifty-seven is written as one hyphenated word.
6. Sound Practice: J and Z (8 words)
zebra[/ËziËbrÉ/]nouneasy
Meaning: āĻā§āĻŦā§āϰāĻž
Alt: āĻāĻžāϞā§-āϏāĻžāĻĻāĻž āĻĄā§āϰāĻžāĻāĻžāĻāĻž āĻŦāύā§āϝ āĻĒā§āϰāĻžāĻŖā§
Example: We saw a zebra at the zoo.
đĄ Exam tip: Zebra begins with the z sound.
jeep[/dĘiËp/]nouneasy
Meaning: āĻāĻŋāĻĒāĻāĻžāĻĄāĻŧāĻŋ
Alt: āĻāĻ āϧāϰāύā§āϰ āĻā§āĻ āĻļāĻā§āϤāĻŋāĻļāĻžāϞ⧠āĻāĻžāĻĄāĻŧāĻŋ
Example: The children went in a jeep.
Syn: vehicle
đĄ Exam tip: Jeep begins with the j sound.
jump[/dĘĘmp/]verbeasy
Meaning: āϞāĻžāĻĢ āĻĻā§āĻāϝāĻŧāĻž
Alt: āĻšāĻ āĻžā§ āĻāĻĒāϰ⧠āĻāĻ āĻž
Example: Do not jump into the river.
Syn: leap, springAnt: stand
đĄ Exam tip: Jump has the same initial sound as jeep.
zoo[/zuË/]nouneasy
Meaning: āĻāĻŋāĻĄāĻŧāĻŋāϝāĻŧāĻžāĻāĻžāύāĻž
Alt: āϝā§āĻāĻžāύ⧠āĻŦāĻŋāĻāĻŋāύā§āύ āĻĒā§āϰāĻžāĻŖā§ āϰāĻžāĻāĻž āĻšāϝāĻŧ
Example: Let us go to the zoo.
Syn: zoological garden
đĄ Exam tip: Zoo begins with the z sound.
buzz[/bĘz/]verbmedium
Meaning: āĻā§āύāĻā§āύ āĻļāĻŦā§āĻĻ āĻāϰāĻž
Alt: āĻŽā§āĻŽāĻžāĻāĻŋāϰ āĻŽāϤ⧠āĻļāĻŦā§āĻĻ āĻāϰāĻž
Example: The bee can buzz.
Syn: hum, whirrAnt: be quiet
đĄ Exam tip: Buzz ends with the z sound.
bee[/biË/]nouneasy
Meaning: āĻŽā§āĻŽāĻžāĻāĻŋ
Alt: āĻŽāϧ⧠āϏāĻāĻā§āϰāĻšāĻāĻžāϰ⧠āĻāĻĄāĻŧāύā§āϤ āĻĒā§āĻāĻž
Example: The bee is near the flower.
đĄ Exam tip: Bee and be sound alike but have different meanings.
go[/ÉĄoĘ/]verbeasy
Meaning: āϝāĻžāĻāϝāĻŧāĻž
Alt: āĻāĻ āϏā§āĻĨāĻžāύ āĻĨā§āĻā§ āĻ
āύā§āϝ āϏā§āĻĨāĻžāύ⧠āϝāĻžāĻāϝāĻŧāĻž
Example: Go to the zoo with your family.
Syn: move, travelAnt: come, stay
đĄ Exam tip: Go is an irregular verb; its past form is went.
see[/siË/]verbeasy
Meaning: āĻĻā§āĻāĻž
Alt: āĻā§āĻ āĻĻāĻŋāϝāĻŧā§ āϞāĻā§āώā§āϝ āĻāϰāĻž
Example: I want to see the zebra.
Syn: look at, watchAnt: ignore
đĄ Exam tip: See is an irregular verb; its past form is saw.
đĄ Exam Tips
âĸ Use Can I help you? when offering help in a shop.
âĸ Use I would like... to make a polite request or to say what you want to buy.
âĸ Use Anything else? to ask whether the customer wants another item.
âĸ Use altogether to express the total amount or total price.
âĸ Here you are is used when giving something to another person.
âĸ Here is your change means that the extra money is being returned.
âĸ Use Can I borrow...? when asking to take someone's thing temporarily.
âĸ Use Could I have...? for a very polite request.
âĸ Remember the difference between borrow and lend: the borrower receives, and the lender gives.
âĸ In number spelling, use and between hundreds and tens or units: one hundred and twenty-two.
âĸ Remember that forty is spelled f-o-r-t-y, not fourty.
âĸ Identify the j sound in jump and jeep and the z sound in zebra, zoo, and buzz.
âĸ For a dialogue question, match polite replies correctly: Sure means yes, while I am sorry may introduce a refusal.
âĸ Use a before a singular countable noun beginning with a consonant sound: a pencil, a sharpener.
âĸ Use an before a singular countable noun beginning with a vowel sound: an eraser.