frost; frost damage (to crop)

freezing weather; frosty sky

frostbite; frost damage (to crop)

frosty morning

popsicle

frosting; icing

suntan lotion; sunscreen cream

(idiom) to make matters even worse; to add insult to injury

white arsenic; arsenic trioxide As2O3

(literary) ice formed in freezing weather as frost or icicles etc (often used as a metaphor for moral uprightness, strictness, sternness or aloofness)