The word is the two-word phrase go ahead packed into a single unit, so the movement is still inside it: something was held back, and now it moves forward. Picture a hand you on. Sometimes the word names the wave itself — the moment permission arrives. Sometimes it describes the people who never wait for the wave. And in a game it names the score that carries your team out in front.
From the word’s history
The Wiktionary entry records go-ahead as a deverbal formation from the phrasal verb go ahead, which is why the forward movement of the phrase is still felt in every use of the single word.
Wiktionary 記載 go-ahead 是從動詞片語 go ahead 轉成名詞／形容詞來的。這正好說明為什麼每一個用法裡都還聽得到「往前走」這個動作。
Wiktionary entry for go-ahead (kaikki extract, source_ref kaikki:3f6f69a190036ae4:971647804): "Deverbal from go ahead."
登入就可以看每一支怎麼連回核心畫面。