出典:Wiktionary
出典:『Wiktionary』 (2026/05/04 21:40 UTC 版)
From 中期英語 helpful; equivalent to help + -ful.
helpful (comparative more helpful, superlative most helpful)
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to be helpful
a helpful person
to help a person out of a difficulty
a helper
to be a help to one―help to do something―tend to do something―have a share in doing something―be instrumental in doing something―contribute to some result―conduce to some state―go far towards the result―do much towards the result―make for some state
to help a person accomplish something
a person who helps accomplish a task