How many letters does the top answer for “to give up or out.” have?

The most common answer is upgive (6 letters).

Crossword clue: to give up or out.

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

upgive 6 letters web-def

To give up or out. [Obs.]

give out or emit 50% similar → effuse

stick out or up 50% similar → bulk

to give up wholly. 50% similar → forlend

to shut up or out. 50% similar → beshut

to trace up or out. 50% similar → uptrace