wa·ter·proof 
(wôtər-prf′, wŏtər-)
(wôtər-prf′, wŏtər-)adj.
1. Impervious to or unaffected by water.
2. Made of or coated or treated with rubber, plastic, or a sealing agent to prevent penetration by water.
n.
1. A material or fabric that is impervious to water.
2. Chiefly British A raincoat or other such outer garment.
tr.v. wa·ter·proofed, wa·ter·proof·ing, wa·ter·proofs
To make impervious to water.
- reaction
- reactionary
- reaction engine
- reaction formation
- reaction time
- reactivate
- reactivation
- reactive
- reactive attachment disorder
- reactively
- reactiveness
- reactive thrust
- reactivity
- reactor
- reactor core
- reactor vessel
- read
- Read
- readability
- readable
- readably
- read a lecture
- read a lecture/lesson
- read a lesson
- read between the lines