Learner's definition of CONQUER
to take control of (a country, city, etc.) through the use of force
to defeat (someone or something) through the use of force
see also divide and conquer at 1divide
to gain control of (a problem or difficulty) through great effort
She has been unable to conquer [=overcome] her fear of heights.
He finally conquered his drug habit.
Scientists believe the disease can be conquered.
to become successful in (a place, situation, etc.)
to succeed in climbing (a mountain)
always used before a noun
the Roman conquerors
William the Conqueror