鯛 （たい） sea bream (Sparidae), porgy, tai (species of reddish-brown Pacific sea bream, Pagrus major)

鯛車 （たいぐるま） traditional sea bream-shaped toy car

青武鯛 （あおぶたい） Scarus ovifrons (species of parrotfish)

腐っても鯛 （くさってもたい） a diamond on a dunghill is still a diamond, quality is quality, an old eagle is better than a young crow, even if it's rotten, it's still sea bream