Nounboard (in shogi, go, chess, etc.) · (phonograph) record; disc; disk · board; panel; plate

Noun, Noun which may take the genitive case particle 'no'disk; discus; platter · flying saucer · disc media (CD, DVD, etc.)

Nounbedrock

Nounbase; basis; foundation; footing; infrastructure · bedrock · platform

Nounkeyboard (of a piano, typewriter, etc.)