1. signboard; sign; billboard; hoarding; doorplate
かなり古い看板のようだ。It seems to be a rather old signboard.
2. draw; attraction; feature; highlight; spokesman; figurehead
彼はチームの看板選手だ。He's the team's star player.
3. reputation (of a shop); name
4. appearance; look; show
5. closing (for the day, esp. of a restaurant or bar); closing time
すみません、もう看板なんです。Sorry, we're already closed for the night.