i Register
In some senses, marathon is marked as figuratively, informal. Watch for register when choosing this word.
ADJ
half, full
VERB + MARATHON
prepare for, train for | compete in, run, take part in | complete, finish | win
MARATHON + NOUN
champion, runner
racing, running
She trained for months to prepare for the marathon racing season.
ADJ
12-hour, 700-mile, etc. | car, cycling, etc.
MARATHON + NOUN
journey, walk | effort
match, race
The marathon race took place early in the morning when the weather was cooler.