Synonyms of threatens

1 Syllable
growl, spook, snarl, scowl, cow
2 Syllables
portend, torment, scare, augur, caution, bully, bluster, browbeat, blackmail
3 Syllables
presage, menace, forewarn, admonish, abuse, enforce
4 Syllables
terrorize, pressurize, forebode, comminate, fulminate
5 Syllables
intimidate