医博[ihaku] doctor of medicine
該博[gaihaku] profundity
該博な知識[gaihakunachishiki] profound knowledge
商学博士[shougakuhakushi] Doctor of Commercial Science
大英博物館[daieihakubutsukan] British Museum

賭博[tobaku] gambling
博愛[hakuai] charity
博愛家[hakuaika] philanthropist
博愛主義[hakuaishugi] philanthropism
博引傍証[hakuinboushou] citing copious references

医学技術士[igakugijutsushi] medical technician
医学士[igakushi] Bachelor of Medicine
一言居士[ichigenkoji] person who is ready to comment on every subject
一士[isshi] private first-class (JSDF)
隠士[inshi] hermit

宇宙飛行士[uchuuhikoushi] astronaut
運転士[untenshi] driver
栄養士[eiyoushi] nutritionist
下士[kashi] noncommissioned officer
下士官[kashikan] non-commissioned officer

天魚[amago] land-locked variety of red-spotted masu trout (Oncorhynchus masou ishikawae)
御天気[otenki] weather
コール天[kooruten] corded velveteen
破天連[pateren] Portuguese Jesuits (in Japan in the 16th century)
天鵝絨[tengajuu] velvet

悪天[akuten] bad weather
悪天候[akutenkou] bad weather
悪天使[akutenshi] evil angels
旭日昇天[kyokujitsushouten] full of vigor and vitality (like the rising sun) (vigour)
一天[itten] the whole sky

キリル文字[kirirumoji] Cyrillic character
ギリシア文字[girishiamoji] Greek character
ロシア文字[roshiamoji] Russian character
悪文[akubun] bad style
遺文[ibun] literary remains

一文[ichibun] (a) sentence
一文[ichimon] something insignificant
一文字[ichimonji] straight line
一文商い[ichimonakinai] (a) penny store
一文惜み[ichimonoshimi] stinginess