Brains and Brawn [Mensa Puzzle]

[Otis]

There are two familiar seven-letter words that contain all of the letters in the word BRAWN. What are these words? One word is common, and the other is a recent coinage.

Hint: In each word, the other two letters are vowels, neither of which is A.

 

[Harry_the_cat]

Spoiler

rainbow, webinar

 

[Otis]

Good one! (I'd given up finding the second word.)