labour2 British English ; labor American English [intransitive]
to work hard:
They laboured all day in the mills.
I've been labouring over this report all morning.
labour to do something
Ray had little talent but labored to acquire the skills of a writer.
to believe something that is not true:
She had laboured under the misconception that Bella liked her.
to describe or explain something in too much detail or when people have already understood it
4 [always + adverb/preposition]TT
to move slowly and with difficulty:
I could see the bus labouring up the steep, windy road.