hazard
(n.) something that is dangerous and likely to cause damage
air
(n.) the mixture of gases that surrounds the ear and that we breathe
interlock
(v.) to fit together firmly
advise
(v.) to give someone advice
role-play
(v.) to pretend to be someone else, especially part of learning a new skill
water
(n.) a clear liquid that is necessary for life
need
(v.) to have to have something or to want something very much
specific
(adj.) relating to one thing and not others
environment
(n.) all of the living things and nonliving things in a place
construction
(n.) the act or result of putting different things together
relieve
(v.) to make an unpleasant feeling less strong
precaution
(n.) an action that is done to prevent something unpleasant or dangerous happening