慣ならし

な

ら

し

Freq.FrequencyTop 50,000

Meanings

breaking in; running in; accustomizing

Refers to the process of gradually getting a machine, engine, or living thing used to normal operation or a new environment. Common in automotive, mechanical, and animal training contexts.

新しん車しゃのエンジンは慣ならし運うん転てんが必ひつ要ようだ。
A new car's engine needs a break-in period.
子こ犬いぬの慣ならしには時じ間かんがかかる。
It takes time to accustom a puppy to its new home.

See all 10 example sentences ›

Kanji

慣accustomed, get used to, become experienced
馴get used to, experienced, tamed

Don't confuse with

均ならしN1
均し (leveling/averaging) and 慣らし (getting used to, breaking in) share the identical reading ならし but differ completely in meaning and kanji.

Word family

下した慣ならし
preparatory activity; warm-up; practice run
手て慣ならし
practice; warm-up; exercise
肩かた慣ならし
warming up; limbering up
足あし慣ならし
walking practice; getting one's legs into shape · warm-up; preparation
慣ならし保ほ育いく
gradual entry into nursery/preschool; settling-in period; phase-in

Written forms

慣ならしUsage79%
Standard kanji spelling for the noun form of 慣らす, used for breaking in, running in, or accustomizing.
ナラシUsage21%
kana-only spelling
Katakana spelling, sometimes used for emphasis or in technical contexts.
馴ならし
Alternate kanji spelling, less common than 慣らし. May appear in older or literary contexts.

Etymology

Noun form of the verb 慣らす (ならす, 'to accustom, to break in'), which is the transitive form of 慣れる (なれる, 'to get used to'). The kanji 慣 carries the core meaning of 'becoming accustomed'.