IPA: /ˈliːdɒf/
KK: /ˈliːdɔf/
A starting action or move, often used in sports or other activities to indicate the beginning of a sequence.
The team's leadoff hitter got on base, setting the tone for the rest of the game.
Lead-off → The word is formed from "lead" (from Old English "lǣdan", meaning to guide or direct) and "off" (meaning away or from). The term "lead-off" refers to the act of guiding or directing away, often used in contexts like sports to indicate the first player to bat or the initial action in a sequence.
Think of someone 'guiding' ('lead') away ('off') from the start of an event — that's why 'lead-off' refers to the first action or player.
No commonly confused words.