速力|そくりょくsokuryoku[2]nakadaka (mid-high)

1. nounspeed

• Synonym速度そくどNeutralThe most general word for speed and also a physics term, as in 「速度制限」. 「速力」 is the word you often meet for the speed of ships and vehicles, and in 「全速力」.
• SynonymスピードNeutralA loanword for speed or being fast, as in 「スピードを出す」. The most common word for speed in colloquial speech.
• Synonym速さはやさNeutralRefers to the degree of being fast, as in 「成長の速さ」. A native-Japanese word that can also be used for abstract things.

Use 「速力」 for the speed of moving ships and vehicles, as in 「全速力で走る」. For speed in general say 「速度」; in everyday speech 「スピード」 is the usual choice; for how fast something is, including abstract cases, use 「速さ」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 速度そくど。速はやさ。スピード。