Translation guide
Describes an action done at maximum intensity, speed, or without holding back. In Japanese, this is expressed with adverbs, idiomatic phrases, or mimetic words rather than a single noun.
To do something with maximum energy, speed, or intensity, often in work, activity, or motion.
Literally 'full power'. Used as an adverb with で to mean 'with all one's might' or 'at full capacity'. Very common and natural.
Literally 'full speed power'. Often used with で for physical movement like running or driving.
The car was going at full speed.
Loanword from English, used almost exclusively in baseball or golf contexts for a full swing of the bat or club.
He took a full swing but missed.
Describing a machine, system, or event that is operating at its highest level or busiest state.
Means 'full operation' for machines, factories, or systems. Also used figuratively for people working at full capacity.
The factory is in full swing 24 hours a day.
Refers to the peak period or golden age of something, like a career or season. More formal/literary.
Doing something with lively, enthusiastic energy, often in a social or creative context.
The English phrase 'full swing' is rarely translated directly as a noun. Using フルスイング outside of sports contexts will sound unnatural. Instead, use adverbs like 全力で or phrases like フル稼働 depending on the meaning.
His brain was working at full capacity.
Means 'in the middle of' or 'at the height of'. Used for events or activities that are in full swing.
The festival is in full swing.
彼の作家としての最盛期は80年代だった。
His career as a writer was in full swing in the 80s.
The party started in full swing.
The discussion was in full swing.