内着
う
ち
ぎ
Meanings
1
everyday clothes; ordinary wear
Refers to clothes worn in daily life, as opposed to formal wear or special attire. Often used in contrast to 外出着 (going-out clothes).
On holidays I often spend the day in everyday clothes.
I store everyday clothes and going-out clothes separately.
2
Used for garments worn under outer clothing, such as undershirts or slips. Less common than 下着 (したぎ) in modern Japanese, but still understood.
On cold days I layer underwear.
This underwear feels good against the skin.