明白[meihaku] obvious
明白[akarasama] plain
明かん[akan] useless
また明日[mataashita] see you tomorrow
意識不明[ishikifumei] unconscious

印鑑証明[inkanshoumei] certification of official registration of a seal
飲み明かす[nomiakasu] to drink the night away
解明[kaimei] clarification
明ける[akeru] to open (a door, etc.)
明け放す[akehanasu] to open wide (doors, windows, etc.)

一本松[ipponmatsu] solitary pine tree
下がり松[sagarimatsu] drooping pine
松魚[shougyo] skipjack tuna
黒松[kuromatsu] black pine
市松[ichimatsu] checked (pattern)

小松菜[komatsuna] Japanese mustard spinach (Brassica rapa var. perviridis)
松の木[matsunoki] pine tree
松下電器[matsushitadenki] Matsushita Electric Industrial
松下電工[matsushitadenkou] Matsushita Electric Works

炬燵[kotatsu] kotatsu
炬火[kyoka] pine torch
掘炬燵[horigotatsu] low, covered table placed over a hole in the floor of a Japanese-style room

置炬燵[okigotatsu] portable brazier
炬燵虫[kotatsumushi] someone who curls up under a kotatsu all winter