1. Growing or remaining under water
   "viewing subaqueous fauna from a glass-bottomed boat"
   - subaquatic, submerged, submersed, underwater

See also: aquatic

• do it
• do justice
• do one's best
• do the dishes
• do the honors
• do the honours
• do up
• do well
• do well by
• do work
• do-gooder
• do-it-yourself
• do-it-yourselfer
• do-nothing
• do-or-die
• do-si-do
• doable
• dob
• dobber
• dobbin
• dobby
• Doberman
• Doberman pinscher
• Dobermann
• Dobermann pinscher