Synonyms of chill in English:

coldness, chilliness, coolness, iciness, crispness, rawness, bitterness, nip, bite, sting, sharpness, keenness, harshness, wintriness, frigidity

informal nippiness

rare gelidity

cold, dose of flu, dose of influenza, respiratory infection, viral infection, virus

archaic grippe

unfriendliness, lack of understanding, lack of sympathy, lack of warmth, chilliness, coldness, coolness, frigidity, aloofness, distance, remoteness, unresponsiveness

make cold, make colder, cool, cool down, cool off

refrigerate, freeze, quick-freeze, deep-freeze, ice

scare, frighten, petrify, terrify, alarm, appal, disturb, disquiet, unsettle

make someone's blood run cold, chill someone's blood, chill to the bone, chill to the marrow, make someone's flesh crawl, give someone goose pimples, scare witless, frighten the living daylights out of, fill with fear, strike terror into, put the fear of God into, throw into a panic

informal scare the pants off

British informal put the wind up, give someone the heebie-jeebies, make someone's hair curl

Irish informal scare the bejesus out of

vulgar slang scare shitless

archaic affright

cold, chilly, cool, crisp, fresh, brisk

bleak, wintry, snowy, frosty, icy, ice-cold, icy-cold, glacial, polar, arctic, raw, sharp, bitter, bitterly cold, biting, piercing, penetrating, numbing, freezing, frigid

informal nippy

British informal parky

rare gelid, brumal