IPA: /ˈhɪtər/
KK: /ˈhɪtər/
A person who strikes or hits, especially in sports like baseball.
The hitter swung the bat and hit the ball out of the park.
Hitter → It is formed from "hit" (from Old English "hyttan", meaning to strike) and "-er" (meaning a person who). A hitter is a person who strikes or hits something.
Think of someone who 'strikes' ('hit') — the '-er' just means a person. A hitter is someone who hits.