一塁手: a first baseperson; a first baseman; a first basewoman

一部始終: the whole story

一日経: dead memorial service where many gather to transcribe a sutra in one day

一網打尽: roundup, wholesale arrest

one part

Corse-du-Sud, department of Corsica, France.

the Tokyo metropolitan region; the area surrounding and including the capital of Japan in Eastern Tokyo

With your heart and soul. To do something with all of your possible effort.

roundup, wholesale arrest; "rounding up the herd with one throw"

first class, first rate / unique, peculiar (to) characteristic (of)