老化 (ろうか, rouka) Japanese meaning: aging | Kotomora

老ろう化か

ろ

う

か

Common wordJLPTN1Freq.FrequencyTop 20,000

老化する · noun or participle which takes 'suru'

Form	Positive	Negative
Dictionary	老ろう化かする	老ろう化かしない
Polite	老ろう化かします	老ろう化かしません
Past polite	老ろう化かしました	老ろう化かしませんでした
Past	老ろう化かした	老ろう化かしなかった
Te-form	老ろう化かして	老ろう化かしないで
Desire	老ろう化かしたい	老ろう化かしたくない
Potential	老ろう化かできる	老ろう化かできない
Passive	老ろう化かされる	老ろう化かされない
Causative	老ろう化かさせる	老ろう化かさせない
Causative passive	老ろう化かさせられる	老ろう化かさせられない
Volitional	老ろう化かしよう
Polite volitional	老ろう化かしましょう
Imperative	老ろう化かしろ	老ろう化かするな
Conditional	老ろう化かすれば	老ろう化かしなければ
Tara conditional	老ろう化かしたら	老ろう化かしなかったら

Meanings

1

noun, noun or participle which takes 'suru', intransitive verb, noun which may take the genitive case particle 'no'

aging; senile deterioration

Refers to the biological process of growing old, including physical and mental decline. Used in medical, everyday, and figurative contexts.

老ろう化かを防ふせぐために運うん動どうを

Kanji

老old man, old age, grow old
化change, take the form of, influence

Related words· 8

加か齢れい
加齢 is a neutral, clinical term for the simple passage of years, while 老化 focuses on the physical and mental decline that accompanies aging.
老ろう衰すいN1
老衰 refers specifically to the bodily weakness of extreme old age, often near death, whereas 老化 describes the broader, ongoing aging process at any stage.
劣れっ化か
老化 refers to natural biological aging of living things, while 劣化 covers a broader decline in quality or performance, including materials and systems.
老ろう人じん性せい
老化 refers to the general biological process of aging, while 老人性 specifically labels a symptom, disease, or trait as being characteristic of old age.

Show 4 more

老ろう朽きゅう
老化 describes the general aging process itself, while 老朽 emphasizes the resulting worn-out or obsolete state, especially of buildings or equipment.
高こう齢れい化かN3
老化 refers to the biological aging of an individual body or organism, whereas 高齢化 refers to the aging of a whole population or society.
老おいN3
老化 focuses on the biological or physical process of deterioration, while 老い is the broader, more reflective idea of growing old.
衰おとろえ
老化 specifically means the decline caused by aging, while 衰え is a general term for loss of strength or vitality regardless of cause.

Opposites

若わか返がえり
若返り means becoming youthful again, the reverse of the decline described by 老化.

Don't confuse with

老ろう朽きゅう化かN1
老朽化 describes buildings, machines, or infrastructure deteriorating with age, while 老化 is used for living things, especially the human body.

Word family

抗こう老ろう化か
anti-aging
老ろう化か現げん象しょう
aging process; phenomena of aging
早そう期き老ろう化か症しょう
progeria
老ろう化か防ぼう止

Etymology

Composed of 老 (old, aged) and 化 (change, transformation), literally meaning 'becoming old'. The reading ろう is the on'yomi of 老, and か is the on'yomi of 化.