noun
Abbreviation of 一等陸士 (いっとうりくし). Used in Japan Ground Self-Defense Force contexts.
See also: 一等陸士
彼は昨年、一士に昇進した。
He was promoted to private first class last year.
一士の階級章は一本の線で表される。
The rank insignia for private first class is represented by a single stripe.
Abbreviation of 一等陸士 (いっとうりくし), literally 'first-class land soldier'. The kanji 一 means 'one' or 'first', and 士 means 'soldier' or 'warrior'.