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.
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.
I store everyday clothes and going-out clothes separately.
On cold days I layer underwear.
This underwear feels good against the skin.
外出着 means going-out clothes, the opposite of 内着 in the everyday-clothes sense.
Standard kanji spelling for both everyday clothes and underwear senses.
Alternate kanji spelling; rarely used in modern Japanese.
Compound of 内 (uchi, 'inside') + 着 (ki, 'clothing'). The reading うちぎ is a regular rendaku form. The spelling 打ち着 is likely ateji or a variant.