Nouns

(n)swell, crestless wavethe undulating movement of the surface of the open sea
(n)swella rounded elevation (especially one on an ocean floor)
(n)swella crescendo followed by a decrescendo
(n)dandy, dude, fop, gallant, sheik, beau, swell, fashion plate, clotheshorsea man who is much concerned with his dress and appearance

Verbs

(v)swellincrease in size, magnitude, number, or intensity“The music swelled to a crescendo”
(v)swell, puff upbecome filled with pride, arrogance, or anger“The mother was swelling with importance when she spoke of her son”
(v)swell, swell up, intumesce, tumefy, tumesceexpand abnormally“The bellies of the starving children are swelling”
(v)well up, swellcome up (as of feelings and thoughts, or other ephemeral things)“Strong emotions welled up”, “Smoke swelled from it”
(v)well, swellcome up, as of a liquid“Tears well in her eyes”, “the currents well up”
(v)swellcause to become swollen“The water swells the wood”

Adjectives

(s)bang-up, bully, corking, cracking, dandy, great, groovy, keen, neat, nifty, not bad, peachy, slap-up, swell, smashing, oldexcellent“he did a bully job”, “a neat sports car”, “had a great time at the party”, “you look simply smashing”, “we had a grand old time”