Are you warm enough or should I turn up the heat?
She had her hands in her pockets to keep them warm.
I like to [go] surfing there because [the] water is warm. (Skills for Life (Entry 1); A1; Hungarian)
I don't have a warm winter coat.
Those gloves look nice and warm.
Remember you should wear warm clothes. (Key English Test; A2; Portuguese)
They're a very warm family.
He has a nice, warm smile.
I'd like to give a warm welcome to our guests this evening.
He is warm and friendly. (Preliminary English Test; B1; Arabic)
When the weather warms up, we'll go camping.
Rub the oil between your hands to warm it.
It takes a little while to warm up the house.
After they save[d] me, I put those gloves on to warm my hands. (First Certificate in English; B2; Portuguese)