Dive

Part of speech: noun (n.)

1. A plunge headforemost into water, the act of one who dives, literally or figuratively.

2. A place of low resort. [Slang] The music halls and dives in the lower part of the city. J. Hawthorne.

Part of speech: verb (v.)

1. To plunge into water head foremost; to thrust the body under, or deeply into, water or other fluid. It is not that pearls fetch a high price because men have dived for them. Whately.

2. Fig.: To plunge or to go deeply into any subject, question, business, etc.; to penetrate; to explore. South.

Part of speech: verb (v.)

1. To plunge (a person or thing) into water; to dip; to duck. [Obs.] Hooker.

2. To explore by diving; to plunge into. [R.] The Curtii bravely dived the gulf of fame. Denham. He dives the hollow, climbs the steeps. Emerson.