英語

useful

gb/jˈusfəl/ us/jˈusfəl/
A2 英語
~ 1100
語義
0件の語義
adjective A2 property
1

helpful for a purpose

Helping you do or get what you want; good for a purpose.

用法パターン: [something] is useful for [doing something]
よくある間違い:
Learners sometimes confuse 'useful' with 'used'; 'used' describes something that has been utilized before, while 'useful' describes something that can help or serve a purpose.
類義語
helpful (Emphasizes giving assistance rather than practical function.) | practical (Focuses on effectiveness and real-world application.)
対義語
useless (Means having no ability to help or serve a purpose.)
コロケーション
prove useful |useful information |useful tool |useful advice |useful skill
テーマ
daily life |work |education |core_vocabulary |daily_life
例文
  • This guide is useful for first-time travelers.
  • A map can be very useful when exploring a new city.
  • She gave me some useful tips for cooking pasta.
  • The internet is a useful source of information.
  • That app is especially useful for learning new languages.
学習者向け例文
  • A phone is useful for calling friends.
  • Water is useful for plants.
  • This book is useful for English study.
  • A bag is useful for carrying things.
文法
辞書形
useful
IPA
GB/jˈusfəl/
US/jˈusfəl/
音節・強勢
use - ful (2音節)
Stress on 1st syllable (use)
活用形
Adjective
  • Base: useful
関連語
Core family
use verb A1 user noun A2
Related words
usefully adverb usefulness noun B2 usable adjective B2 usage noun B1
Negative and opposite forms
useless adjective A2 uselessly adverb uselessness noun unusable adjective
Advanced or less common
usability noun C1 utilize verb C1 utility noun B2
表現

come in useful

1
/kˈʌm ˈɪn jˈusfəl/
fixed phrase informal

to be helpful when needed

To be helpful in a particular situation.

例文
  • This pocketknife might come in useful during the hike.
  • Her language skills came in useful when we traveled abroad.

put to good use

1
/pˈʊt tə ɡˈʊd jˈus/
fixed phrase

to use effectively for benefit

To use something in a way that brings good results.

例文
  • He put his savings to good use by starting a business.
  • They put the extra time to good use and finished early.

make use of

1
/mˈeɪk jˈus əv/
fixed phrase

Employ something effectively

To use something in an effective way.

例文
  • We should make use of the free materials provided.
  • We should make use of the free resources available online.
  • She made good use of her time abroad.
  • She made use of her contacts to find a new job.

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