Flair and Flare
Flair is a noun referring to a natural talent (she has a flair for languages) or a distinctive elegance (he dressed with flair).
Flare can be a noun or a verb. As a noun it can refer to a fire or a flame, or something you would ignite to make a signal light. A solar flare is an area of intense activity on the Sun. In photography or videography a flare is light reflected between lenses.
As a verb, flare can mean a sudden increase in a fire or flame. Flaring can also refer to spreading outward. Twirling will cause a skirt to flare out.