You are looking for the word subaqueous.
The definition of subaqueous is "something that us formed or adapted for underwater use" and "something that is found or occurs underwater".
An example of a subaqueous object is a submarine.
to drown
Umbrella and underwater...
submerging
I've is a word that means I have. I'll is a word that means I will.
gill
The four letter word that means, "I forbid," is veto.veto
A ten letter word that means equal to is equivalent.
Brave is a five-letter word that means gallant.
SCUBA -Self Contained Underwater Breathing Apparatus
Pester is a six letter word that means to annoy
The Epistles are found in the New Testament only; the word epistle means letter. For example, the letter from Paul to the Romans, to the the people in Corinth or to Timothy and Titus.
A six letter word that means argue is bicker.