How many letters does the top answer for “another word for program” have?

The most common answer is plan (4 letters).

Crossword clue: another word for program

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

plan 4 letters gen-syn

a series of steps to be carried out or goals to be accomplished

programme 9 letters gen-syn

a performance (or series of performances) at a public presentation

another word for about 50% similar → approximately, roughly, some

another word for terms 50% similar → footing

another word for under 50% similar → nether

another word for word 50% similar → phrase