shh

exclamation2

1. •
   be quiet and stop talking
2. •
   Comforting one who is crying.

noun1

1. •
   An utterance of shh.

   • Twenty-five million dollars each?! There were hmms and shhs around the table. — 1997

verb1

1. •
   To utter shh.

   • “Hey,” the test-taker who’d shhed sat up, glared, saw the exec, shut up, and hunched down over the test. — 1992

noun2

1. •
   Initialism of sonic hedgehog gene (“the gene encoding for the protein "sonic hedgehog"”).
2. •
   Initialism of sonic hedgehog homolog (protein).