Translation guide
The defensive player positioned at first base in baseball. In Japanese, this is typically expressed with a direct loanword or a native compound.
Refer to the player who defends first base.
The most common and natural way to refer to the first baseman in Japanese baseball contexts. Shortened from 'first baseman'.
彼はファーストを守っている。
He is playing first base.
Formal or written term for 'first baseman', used in official scorebooks or news articles.
Full loanword, rarely used in everyday speech; sounds overly literal or foreign.
彼はプロのファーストベースマンだ。
He is a professional first baseman.
一塁手が好守備を見せた。
The first baseman made a great defensive play.