(たんしゅくけい)

たんしゅくけい
noun
shortened form; contraction; abbreviation
1. a shortened form of a word, phrase, or expression; a contraction or abbreviation that is in common use as a substitute for the full version
A general grammatical/linguistic term for any shortened version of a longer word or expression. It covers English-style contractions like 'don't' for 'do not', Japanese colloquial contractions like 〜じゃない for 〜ではない, abbreviated names like スマホ for スマートフォン, and the various ways that nouns or technical terms get shortened in everyday speech. Common in language-learning materials, dictionaries, and grammar explanations.
「don't」は「do not」の短縮形(たんしゅくけい)だ。
'Don't' is the contracted form of 'do not'.
「じゃない」は「ではない」の短縮形(たんしゅくけい)です。
'Janai' is the shortened form of 'dewa nai'.
会話(かいわ)では短縮形(たんしゅくけい)使(つか)うほうが自然(しぜん)()こえる。
In conversation, using shortened forms sounds more natural.
若者(わかもの)(あいだ)では、カタカナ()短縮形(たんしゅくけい)次々(つぎつぎ)()まれている。
Among young people, new shortened forms of katakana words are constantly being created.

Composed of 短縮(たんしゅく) ('shortening, contraction') + (けい) ('form, shape'). The suffix (けい) is also used in many other grammar terms: 過去形(かこけい) ('past form'), 否定形(ひていけい) ('negative form'), 命令形(めいれいけい) ('imperative form').

USAGE:

短縮形(たんしゅくけい) is a general cover term used in:

  • English-language teaching, where it translates 'contraction': can't = cannot, I'm = I am.
  • Japanese grammar explanations, where it covers colloquial contractions like 〜ちゃう (← 〜てしまう), 〜じゃ (← 〜では), and すいません (← すみません).
  • Vocabulary and slang discussions, where it covers shortened loanwords like スマホ (← スマートフォン), パソコン (← パーソナルコンピュータ), コンビニ (← コンビニエンスストア), and リモコン (← リモートコントロール).

COMMON COLLOCATIONS:

  • 短縮形(たんしゅくけい)使(つか)う: to use a shortened form
  • 短縮形(たんしゅくけい)にする: to shorten (something) into a contracted form
  • 短縮形(たんしゅくけい)()く: to write in shortened form
  • 短縮形(たんしゅくけい)(おぼ)える: to memorize the contracted forms
  • 〜の短縮形(たんしゅくけい): the shortened form of ~
  • 動詞(どうし)短縮形(たんしゅくけい): the shortened form of a verb
  • カタカナ()短縮形(たんしゅくけい): the shortened form of a katakana loanword

SIMILAR WORDS:

  • 省略形(しょうりゃくけい): omitted form, abbreviated form — close in meaning; emphasizes that something has been left out rather than that the form is shorter overall.
  • 略語(りゃくご): abbreviation, acronym — refers to abbreviated words or initialisms (e.g. NHK, JR, スマホ); a more common everyday word for shortened nouns.
  • 略称(りゃくしょう): abbreviated name — used for shortened forms of organization names, country names, and titles.
  • 縮約形(しゅくやくけい): contracted form — a more technical linguistics term.
  • 基本形(きほんけい): base form, dictionary form — the opposite concept; the unshortened or 'plain' form of a verb or adjective.

DOMAIN NOTE:
In Japanese, contractions are particularly common in casual spoken language. Some, like じゃ (← では) and ちゃう (← てしまう), are now so well established that they have their own dictionary entries. Learners are usually introduced to these 短縮形(たんしゅくけい) after mastering the full forms, since the contractions can otherwise be hard to recognize.