1 weather condition
ADJ. bitter, great, hard, heavy, severe, sharp | light | early, first, late The young plants all died in the late frost. | autumn, spring, winter | ground a heavy ground frost | night
QUANT. touch There was just a touch of frost in the air. | degree There were ten degrees of frost last night.
FROST + VERB set in The winter frosts have set in up north. | nip at sth The sharp frost nipped at our noses.
2 very thin layer of little pieces of ice
VERB + FROST be covered in/with The windows were covered in frost.
VERB + FROST melt The car was wet with melting frost.