A
abandonment - Leaving a victim before treatment is finished (n)
adrift - Floating freely in the water (adj)
aft - Near the stern of a boat (adj)
aground - When a seagoing vessel hits land or hits the bottom in shallow water (adj)
ATV - All-terrain vehicle (also known as a quad) (n)
awash - Floating freely in the water, especially in the surf (adj)