intransitive verb

1. 1. to utter a shrill, loud, piercing cry in fright, pain, etc.
   2. to make or move with a shrill, piercing sound
2. to laugh loudly or hysterically
3. to have a startling effect; leave a vivid impression
4. to shout or yell in anger, hysteria, etc.

Etymology: ME screamen, akin to Fl schreemen, to scream, Ger schrei, a cry < IE *skerei- < echoic base *(s)ker- > shriek, raven, ring

transitive verb

1. to utter with or as with a scream or screams
2. to bring into a specified state by screaming to scream oneself hoarse

noun

1. 1. a sharp, piercing cry; shriek
   2. any shrill, piercing sound
2. Informal a person or thing considered hilariously funny