1) Adds to 2) Bulges 3) Distends 4) Enlarges 5) Fops 6) Grows 7) Rises 8) Surges 1) Big waves 2) Comes to a crescendo 3) Distends 4) Fancy people 5) Gets big 6) Gets louder 7) Grows fat like the rich 8) Grows in bulk 9) High-ranking types 10) Potential boat capsizers 11) Storm warnings at sea 12) Surfboard carriers 13) Waxes 
Ocean waves of regular and longer duration than wind waves.
Unsalable items with expanded containers or lids signifying faulty food handling, processing or sealing. See swell allowance; bloating. 
Exterior projection of the fork of a Western saddle
Persistence of wind-formed waves after wind ceases.
Offshore waves that may be generated thousands of miles away. Usually easier to navigate than wave chop, which is steeper and much more frequent. Swells generally become a problem when they near land, as their height increases.