一刻[ikkoku] minute
一刻も早く[ikkokumohayaku] immediately
一刻千金[ikkokusenkin] every moment is precious
印刻[inkoku] seal engraving

印刻師[inkokushi] seal engraver
夏時刻[natsujikoku] daylight-saving time
午刻[gokoku] noon
行動発起時刻[koudouhakkijikoku] h-hour

篆書[tensho] characters used on seals
篆刻[tenkoku] seal engraving
篆字[tenji] seal script character

篆隷[tenrei] seal style and ancient square style
大篆[daiten] large seal script (dating from China's Spring and Autumn period onward)
小篆[shouten] small seal script (arising during China's Warring States period)