be, feel, look, seem
become, get, grow, turn
How can we get warm?
She felt her face grow warm at his remarks.
The weather had turned warm.

keep, stay
She tries to keep warm by sitting right next to the fire.
The bread should stay warm for at least half an hour.

keep sb/sth, make sb/sth
These will keep your feet warm.

serve sth
Bake for 15 minutes and serve warm with Greek yogurt.

extremely, fairly, very, etc.
exceptionally, particularly
almost
It was a mild day, almost warm.

just
Add the sour cream and cook, stirring, until just warm.

moderately, relatively
a little, slightly, etc.
enough, sufficiently
Are you sure you'll be warm enough dressed like that?

beautifully, comfortably, deliciously, pleasantly, wonderfully
I slid further down into the pleasantly warm bed

uncomfortably
The room seemed uncomfortably warm.

surprisingly
unseasonably, unusually
The night air was soft and unseasonably warm.

nice (and) warm
Come and have a nice warm drink by the fire.
That jacket looks nice and warm.

warm to the touch
The machine may feel warm to the touch.

be, sound
become

extremely, very
an extremely warm and friendly person

genuinely
surprisingly

Warm is used with these nouns:
affection, afternoon, air, applause, approval, atmosphere, bath, bed, beer, blanket, blood, breath, breeze, brown, caress, cheek, climate, clothes, clothing, colour, condition, congratulations, cover, cup, current, day, drink, duvet, earth, embrace, environment, evening, eye, feeling, fire, friendship, fur, glow, greeting, heart, hospitality, hug, iron, kiss, light, memory, milk, month, morning, mouth, mug, night, ocean, oven, palm, person, personality, praise, pyjamas, rain, ray, reception, regard, room, salad, sand, scent, sea, sensation, shade, shower, smell, smile, spell, sun, sunlight, sunshine, sweater, tear, temperature, thanks, tone, towel, tribute, underwear, voice, washcloth, water, weather, welcome, wind, winter