playing an important role, but not always easily noticed or stated clearly; hidden under the surface

a very small amount; less than enough

to recognize exactly what an illness is or the cause of a problem

expressed clearly in a way that you are very sure about what you are saying

variety of similar things

to be the explanation or cause of something

to show that something is right or reasonable

an opinion or attitude towards a particular subject

as a group

action taken to improve or help a problem, illness, etc.

to be in charge of someone/something and make sure that everything is done correctly, safely, etc.

to name or describe someone/something in a particular way

in the same order as the people or things already mentioned

able to change when necessary in order to deal with different situations

injury or damage

to decide which type or group that something/someone belongs to

to cause something, especially a problem or difficulty

completely different or opposite in meaning

happening repeatedly or for a long time

two or more things/phenomena happening at the same time

lack care or attention towards someone/something

importance, respect, and value of a person

able to apply to most people, things, conditions, etc.

to guess or calculate a number, based upon evidence

control of behavior, thoughts, work habits, etc.

not behaving or working normally

the ability of something to produce the results that are desired