1.
to behave; to conduct oneself
To act in a certain manner, especially in social situations.
大人らしく振る舞いなさい。
Behave like an adult.
何も知らないふりをして振る舞った。
I acted as if I knew nothing.
初めての場所でも堂々と振る舞える人を尊敬する。
I admire people who can carry themselves confidently even in unfamiliar places.
2.
to treat to; to serve
To offer food or drink to others as a host.
料理を振る舞う。
To serve food to guests.
友人が手作りのケーキを振る舞ってくれた。
My friend treated us to homemade cake.
正月に親戚が集まると、祖母はいつも手料理を振る舞ってくれた。
Whenever relatives gathered for New Year's, my grandmother would always serve us her home cooking.
振る舞う has two distinct meanings: behavior and hospitality. Both are common in everyday usage.
TRANSITIVITY:
- Sense 1 (behave): intransitive (自動詞)
- Sense 2 (treat to): transitive (他動詞)
ASPECT (ている):
振る舞っている indicates ongoing behavior or acting a certain way.
PARTICLE PATTERNS:
- [manner]に振る舞う — to behave in [manner]
- [person]に[food]を振る舞う — to treat [person] to [food]
COMMON PATTERNS:
- 普通に振る舞う (behave normally)
- 紳士的に振る舞う (conduct oneself like a gentleman)
- 料理を振る舞う (serve food to guests)
NOUN FORM:
振る舞い means "behavior" or "conduct," and also "treat" or "feast."