内股に

うちまたに

(walking) pigeon-toed

内密に

ないみつに

confidentially, privately, off the record

年内に

ねんないに

within the year, before the year is out

権限内に

けんげんないに

within the scope of authority

その内に

そのうちに

one of these days, sooner or later, eventually

内なる

うちなる

inner (self, voice, man, etc.), internal (conflict, tension, competition, etc.), interior

内払い

うちばらい

part payment

内祝い

うちいわい

gift for close relatives or friends (given on the occasion of a family celebration)

内嫌い

うちぎらい

person who dislikes staying at home

若い内

わかいうち

while young

に違いない

にちがいない

I am sure, no doubt that, must, must have (done)

にいにい

older brother

内

うち ない

inside, within

声にならない

こえにならない

soundless, mute

話にならない

はなしにならない

to not be worth considering, to be out of the question

気になれない

きになれない

don't feel like doing, can't bring oneself to do, can't face

にいにい蝉

にいにいぜみ

Kaempfer cicada (Platypleura kaempferi)

鉄は熱い内に鍛えよ

てつはあついうちにきたえよ

Strike while the iron is hot

いい気になる

いいきになる

to be self-complacent, to be conceited, to flatter oneself, to be full of oneself