present participle of change horses in mid-stream

Someone or something who changes things. / Someone or something that changes or transforms itself. / A person employed in changing or discounting money.

(electronics) A coupling device that allows two male or two female connectors to be joined together.

(European folklore, also figuratively) In pre-modern European folklore: an infant of a magical creature that was secretly exchanged for a human infant. In British, Irish and Scandinavian mythology the exchanged infants were thought to be those of fairies, sprites or trolls; in other places, they were ascribed to demons, devils, or witches.

(archaic, rare) Changeable, fickle, inconstant, wavering.

Capable of being changed. / Subject to sudden or frequent changes. / (of a species) Capable of camouflaging itself by changing colour.

the condition of being changeable / the condition of being able to suffer some changes

The quality of being changeable; changeableness.

unchanging

In a changeless manner.