Of, pertaining to, or accompanied by thunder. / Producing a noise or effect like thunder; thunderous. / (colloquial) Very great; extraordinary.

A loud percussive sound, like thunder. / (archaic) A thunderstorm.

Very loud; that sounds like thunder; thundersome. Also in metaphorical expressions, signifying fury.

The top portion of a cumulonimbus cloud, which tends to be flattened or fibery in appearance, and may be indicative of thunderstorm activity.

A general guideline, rather than a strict rule; an approximate measure or means of reckoning based on experience or common knowledge. / (attributive, usually hyphenated) Approximated, guesstimated.

The violent, criminal acts that are associated with thugs, and/or the fashion, manner of speaking, and demeanor associated with them.

(Christianity) Maundy Thursday, the Thursday before Easter / (now rare) Ascension Day

A god associated with thunder.

Alternative form of thumbs down

To disapprove with a thumbs-down sign.