likely or prone to be affected by. conditionally upon. An area of study at school, e.g. math, history. cause or force person or thing to undergo.

presence in or introduction into environment of substance which has harmful or poisonous effects.

place, person, or thing from which something comes or can be obtained. To get, e.g. a raw material, from somewhere.

Connected to; in association with. To understand or sympathize with, e.g. a problem.

To try to do something challenging or difficult.

more distant in space. A greater distance; at a more distant point. (Used to introduce an additional point); also. help or promote.

sea area. Long holes dug in the ground, e.g. to move water. To direct water or liquid through a passage.

act of taking or holding something in hands. To hold, control, or use something with the hands.

action of helping or doing work for someone. Ceremonies for religious purposes. To maintain a piece of machinery so it runs well.

inclined or willing. To get rid of by throwing away.

treated so as to be non-flammable. Resistant to catching fire. make something flameproof.

undefined. Device used to put out fires.

(Of clothes) appropriate for a given occasion.

Essence of; most basic or central qualities.

keep something from happening.