ツーベースFreq.FrequencyTop 100,000Meanings1noundouble (baseball)baseball›A hit that allows the batter to reach second base. Wasei-eigo from English 'two base'; the standard English term is 'double'.wasei-eigo (Japanese-coined English), from two base彼かれは初しょ回かいにツーベースを打うった。He hit a double in the first inning.