extend · verb T /ɪkˈstend/
extend
B2 to make something bigger or to make something last for a longer time
Dictionary examples:
We have plans to extend the deck.
They've extended their range of products.
A lot of department stores have extended their hours.
I need to extend my visa.
Learner example:
If we decide to extend our stay for two more days, does the offer still stand? (First Certificate in English; B2; Chinese)