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.)

明晰[meiseki] clear
明晰夢[meisekimu] lucid dream (dreaming while knowing that you are dreaming)

頭脳明晰[zunoumeiseki] being clearheaded

右脳[unou] right brain
健脳剤[kennouzai] brain tonic
左脳[sanou] left brain
主脳者[shunousha] head
主脳[shunou] head

主脳会談[shunoukaidan] leadership conference
小脳[shounou] cerebellum
樟脳[shounou] camphor
人工頭脳[jinkouzunou] cybernetics
洗脳[sennou] brainwashing

データの先頭[deetanosentou] beginning of data
一頭[ittou] one large animal (horses, cattle, etc.)
一頭立て[ittoudate] one-horse (carriage)
咽頭[intou] pharynx
駅頭[ekitou] station

音頭[ondo] leading a group of people
会頭[kaitou] society president
街頭[gaitou] in the street
核弾頭[kakudantou] nuclear warhead
巻頭[kantou] opening page of book