| adequate |
enough for the situation or need. |
| collide |
to strike or bump into one another with force. |
| elapse |
to go or slip by; pass or come to an end. |
| equivalence |
the state, fact, or condition of being the same in value, amount, importance, or the like. |
| futile |
unlikely to produce or incapable of producing a desired result; ineffective; useless. |
| naive |
simple, natural, and unsophisticated; lacking in suspicion. |
| off-key |
not on the right musical note or pitch; flat or sharp. |
| prosecute |
to begin or carry on a court action against in order to enforce the law. |
| publicize |
to make widely known; advertise. |
| refugee |
a person forced to leave his or her home or country to seek safety or protection. |
| rivalry |
the act, relation, or condition of one who competes with another or of those who compete with each for dominance. |
| severity |
strictness; harshness. |
| signify |
to serve as a sign of; mean. |
| theory |
a reasonable, widely accepted explanation for why something happens. |
| threshold |
the point when something starts to happen. |