How many letters does the top answer for “moving toward the west” have?

The most common answer is westbound (9 letters).

Crossword clue: moving toward the west

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

westbound 9 letters wn-def

moving toward the west

westerly 8 letters wn-def

toward the west

westward 8 letters wn-def

toward the west

moving toward the east 50% similar → eastbound, eastward

moving toward the north 50% similar → northbound, northward

moving toward the south 50% similar → southbound, southward

toward the west; westward. 50% similar → westerly