Set 1
showing or feeling opposition or dislike; unfriendly.
Hostile
disappear suddenly and completely.
Vanish
having or showing an excessively high opinion of one's appearance, abilities, or worth.
Vain
extreme scarcity of food.
Famine
long existence or service.
Longevity
identify the nature of (an illness or other problem) by examination of the symptoms.
Diagnose
prevent (a person or place) from having or using something.
Deprive
a general agreement.
Consensus
make changes in (something, especially an institution or practice) in order to improve it.
Reform
destroy or ruin.
Devastate
rise and fall irregularly in number or amount.
Fluctuate
(of people) gather together in one place for a common purpose.
Assemble
(of a feeling or action) experienced or done by each of two or more parties towards the other or others.
Mutual
a person or thing causing inconvenience or annoyance.
Nuisance
a lack or shortage.
Deficiency
enlist (someone) in the armed forces.
Recruit
lower in rank, status, or quality.
Inferior
occur at the same time.
Coincide
establish by calculation.
Reckon
expose (one's country, a group, or a person) to danger by treacherously giving information to an enemy.
Betray