Dervish and Whirler

Dervish noun - An ascetic Muslim monk; a member of an order noted for devotional exercises involving bodily movements.

Whirler and dervish are semantically related. In some cases you can replace term "Whirler" with "Dervish", this nouns are similar.

Whirler noun - A dervish whose actions include ecstatic dancing and whirling.

Dervish and whirler are semantically related. Sometimes you can use "Dervish" instead a noun "Whirler".