Definitions
1.verbTo swim under water.
2.verbTo jump into water head-first.
3.verbTo jump headfirst toward the ground or into another substance."to dive into home plate"
4.verbTo descend sharply or steeply.
5.verb(especially with in) To undertake with enthusiasm."She dove right in and started making improvements."
6.verbTo deliberately fall down after a challenge, imitating being fouled, in the hope of getting one's opponent penalised.
7.verbTo cause to descend, dunk; to plunge something into water.
8.verbTo explore by diving; to plunge into.
9.verbTo plunge or to go deeply into any subject, question, business, etc.; to penetrate; to explore.