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Commonly Confused English Words Flashcards — 300 Words

Practice 300 commonly confused English word pairs. These are the words ESL learners (and many native speakers) mix up: affect/effect, less/fewer, lay/lie, accept/except. Each card pairs the confused words with a clear distinction rule and an example showing the difference in context.

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Why English Has So Many Confused Word Pairs

English absorbed vocabulary from Anglo-Saxon, French, Latin, and Greek over centuries. Words from different roots ended up similar in sound or spelling without sharing meaning: affect/effect, lay/lie, fewer/less, principal/principle, complement/compliment. Native speakers regularly mix these up too. Each card pairs the confused words with a clear distinction rule.

How to Stop Confusing Word Pairs

The trick is anchoring each word to a memorable example sentence. "Affect" is usually a verb ("the rain affected the picnic"); "effect" is usually a noun ("the effect was disappointing"). Once the example sticks, the choice becomes automatic. Use the example sentence on the back of each card as your anchor.

First 20 entries in this collection

accept /əkˈsɛpt/ To take or agree to something that is offered or given. act /ækt/ To do something; to take action or behave in a particular way. actually /ˈæktʃuəli/ In fact or really. Used to say what is true, especially when it's different from what others think. advice /ədˈvaɪs/ Helpful ideas or suggestions that someone gives you to help you decide what to do. age /eɪdʒ/ How old someone is or how long something has been around, measured in years. aid /eɪd/ Help or support given to someone who needs it. all /ɔːl/ Every person or thing in a group; the complete amount of something. am /æm/ The verb 'be' when you talk about yourself: 'I am happy.' an /ən/ The word you use before a singular noun that starts with a vowel sound, like 'an apple' or 'an hour'. anyway /ˈɛniˌweɪ/ Despite what was just said or thought; continuing forward with the point or action. as /æz/ At the same moment; happening at the same time. ask /ɑːsk/ To request information by speaking a question; to inquire. at /æt/ A small word that shows where something is, when it happens, or what somebody is doing. back /bæk/ At the rear end or opposite side from the front of something. back /bæk/ Going in the direction where you came from, or returning to how things were before. bad /bæd/ Not good; having negative qualities or causing harm or unhappiness. bag /bæɡ/ A container you use to carry or store things, made of soft material with handles or an opening. base /beɪs/ The lowest or bottom part that something rests on or stands on. bat /bæt/ A small animal that flies at night. Bats have wings covered with skin and usually eat insects. before /bɪˈfɔːr/ Shows position (in front of) or time (earlier than); comes in front of a noun or event.

FAQ

How is this collection assembled?

Cards are selected by a metadata query against the dictionary — for example, "irregular-verbs" pulls every entry where the verb_conjugation field has is_irregular = true. The deck stays current automatically as new dictionary entries publish.

Should I study this before or after CEFR levels?

Use collections as a focused supplement, not a replacement. Build your CEFR foundation first, then drill collections to plug gaps. The "Irregular Verbs" collection in particular is worth doing in parallel with A1 and A2 — most irregulars are top-1k words.

Why are some entries missing?

The dictionary publishes entries in tiered batches. Specialist or rare entries may not have been added yet. Check back as new batches publish.

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