English definition of “extend”
MAKE BIGGER [T] › to make something bigger or longer: We're going to extend our kitchen. Can you extend the ladder a bit?
MAKE LAST [T] › to make an activity, agreement, etc last for a longer time: They have extended the deadline by one week.
extend from/into/over, etc › to continue or stretch over a particular area of land or period of time: a mountain range that extends down the Italian peninsula Will the building work extend into next week?
STRETCH OUT [T] › to stretch out a part of your body: She smiled and extended her hand.
extend an invitation/thanks, etc to sb formal › to give someone an invitation/thanks, etc: I'd like to extend a warm welcome to our guests.