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to groan; to moan
to roar; to howl; to growl
to hum (engine, wind, etc.); to buzz; to whiz; to sough; to make a low, dull sound
to ooh and aah (in admiration)
to sing in a strong, low voice (esp. traditional chant or recitation)
to be about to burst; to overflow
病気で辛くて彼は一晩中呻っていた。
He was groaning all night due to his illness.
痛みに耐えかねて患者は呻り続けていた。
Unable to bear the pain, the patient continued to groan.
苦しみのあまり彼女は声を出して呻った。
She groaned aloud from the intense pain.