Definition: make dim or indistinct
Usage: The fog blurs my vision
Similar words: alter, change, modify
Definition: cause to change; make different; cause a transformation
Usage: The advent of the automobile may have altered the growth pattern of the city; The discussion has changed my thinking about the issue
Synonyms: blear, blear-eyed, bleary, bleary-eyed
Definition: tired to the point of exhaustion
Similar words: tired
Definition: depleted of strength or energy
Usage: tired mothers with crying babies; too tired to eat