(1):

(n.) Light vapor or smoke in the air which more or less impedes vision, with little or no dampness; a lack of transparency in the air; hence, figuratively, obscurity; dimness.

(2):

(v. i.) To be hazy, or tick with haze.

(3):

(v. t.) To harass by exacting unnecessary, disagreeable, or difficult work.

(4):

(v. t.) To harass or annoy by playing abusive or shameful tricks upon; to humiliate by practical jokes; - used esp. of college students; as, the sophomores hazed a freshman.