Groan (verb)

1. To make a low, mournful sound, typically expressing pain, sorrow, or dissatisfaction.
2. To give out a deep, prolonged, low sound as a sign of pain, sorrow, or anger.

Origin:

Middle english: of unknown origin.

Examples:

1. The old man groaned as he got out of bed.
2. She groaned in frustration as she realized she had left her keys at the office.
3. The injured player groaned in pain as he was helped off the field.
4. The creaky floorboards groaned under the weight of the heavy furniture.
5. The entire room groaned in disappointment as the lights went out.