1.  shriek(n = noun.communication) scream, screaming, screech, screeching, shrieking - sharp piercing cry; "her screaming attracted the neighbors"
is a kind of call, cry, outcry, shout, vociferation, yell
Derived form verb shriek₁

2.  shriek(n = noun.event) scream, screaming, screech, screeching, shrieking - a high-pitched noise resembling a human cry; "he ducked at the screechings of shells"; "he heard the scream of the brakes"
is a kind of noise
Derived form verb shriek₁

   shriek(v = verb.communication) pipe, pipe up, shrill - utter a shrill cry;
is one way to call, cry, holler, hollo, scream, shout, shout out, squall, yell
Derived forms noun shriek₁, noun shriek₂, noun shrieking₁
Sample sentences: The birds shriek in the woods ; The woods shriek with many kinds of birds

   To utter a loud, sharp, shrill sound or cry, as do some birds and beasts; to scream, as in a sudden fright, in horror or anguish. [1913 Webster]
"It was the owl that shrieked." [1913 Webster]
"At this she shrieked aloud; the mournful train
Echoed her grief." [1913 Webster]

   To utter sharply and shrilly; to utter in or with a shriek or shrieks. [1913 Webster]
"On top whereof aye dwelt the ghostly owl,
Shrieking his baleful note." [1913 Webster]
"She shrieked his name
To the dark woods." [1913 Webster]

   A sharp, shrill outcry or scream; a shrill wild cry such as is caused by sudden or extreme terror, pain, or the like. [1913 Webster]
"Shrieks, clamors, murmurs, fill the frighted town." [1913 Webster]

shriek, v. & n.
--v.
1 intr. a utter a shrill screeching sound or words esp. in pain or terror. b (foll. by of) provide a clear or blatant indication of.
2 tr. a utter (sounds or words) by shrieking (shrieked his name). b indicate clearly or blatantly.
--n. a high-pitched piercing cry or sound; a scream.

Idiom:
shriek out say in shrill tones. shriek with laughter laugh uncontrollably.

Derivative:
shrieker n.

Etymology:
imit.: cf. dial. screak, ON skr{aelig}kja, and SCREECH

VB  cry, roar, shout, bawl, brawl, halloo, halloa, hoop, whoop, yell, bellow, howl, scream, screech, screak, shriek, shrill, squeak, squeal, squall, whine, pule, pipe, yaup, cheer, hoot, grumble, moan, groan, snore, snort, grunt, vociferate, raise up the voice, lift up the voice, call out, sing out, cry out, exclaim, rend the air, thunder at the top of one's voice, shout at the top of one's voice, shout at the pitch of one's breath, thunder at the pitch of one's breath, s'_egosiller, strain the throat, strain the voice, strain the lungs, give a cry.