noun
swordsman; swordswoman; fencer
A person skilled in swordsmanship, often with a historical or martial-arts connotation. Can refer to both men and women, though 剣士 is not gender-specific.
彼は有名な剣士だ。
He is a famous swordsman.
その剣士は見事な技を見せた。
The fencer showed a brilliant technique.
Compound of 剣 (ken, 'sword') and 士 (shi, 'person of skill or profession'), literally 'sword person'. The reading is on'yomi.