To make a deep, inarticulate sound conveying pain, despair, or discomfort. He groaned in pain after stubbing his toe on the table.
To complain or grumble about something. She groaned about the amount of homework she had to complete over the weekend.
To make a sound resembling a groan, often due to pressure or strain. The old floorboards groaned under the weight of the heavy furniture.
To endure or suffer under oppression, hardship, or excessive weight. The citizens groaned under the heavy taxes imposed by the new regime.