Huelga (pronounced more like well-ga) is the Spanish word for strike but it is the kind of strike that Cesar Chavez would call--not what a baseball umpire would call. The Spanish word for a pitched baseball strike is basically the same as the English word except with a Spanish pronunciation.
strike-n.m. estraíc; estray; called strike-n.m.automático; estraíc cantado strike (labor)-n.f. huelga; m. paro