-er

英語（米国） (en-US) 英語（イギリス） (en-GB)

IPA（発音記号）

/ə/

接尾辞

動詞接辞 形態素 くだけた表現 職業名詞用接辞 数詞接尾辞 俗語 ほぼ無制限 名詞接尾辞 名詞接辞

(added to verbs) A person or thing that does an action indicated by the root verb; used to form an agent noun.

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In many words, adding -er to a verb turns it into someone who performs the action.

詳細

意味（1）

(added to verbs) A person or thing that does an action indicated by the root verb; used to form an agent noun.

read + -er → reader

詳細

意味（2）

(added to verbs, informal) A person or thing to which the root verb can satisfactorily be done.

look + -er → looker (“an attractive person”)

詳細

意味（3）

(added to a noun denoting an occupation) A person whose occupation is (the noun).

astrology + -er → astrologer

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意味（4）

(added to a number, measurement or noun denoting a quantified set) A name for a person or thing that is based on a number (with or without a noun).

six + -er → sixer

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意味（5）

(slang, chiefly entertainment, with few limitations) Used to form nouns shorter than more formal synonyms.

percent + -er → percenter (“commission agent”)

詳細

意味（6）

(informal, added to a noun) One who enjoys.

Tooners lined up for tickets to Toy Story.

詳細

意味（7）

(added to nouns) Person who is associated with, or supports a particular theory, opinion, or belief.

anti-vax + -er → anti-vaxxer

詳細