Deterioration, decline, reduction.
A decline.
A downward swooping motion.
A swim under water.
A jump or plunge into water.
Aerial descent with the nose pointed down.
A deliberate fall after a challenge.
A seedy bar, nightclub, etc.
A headfirst jump toward the ground or into another substance.
To deliberately fall down after a challenge, imitating being fouled, in the hope of getting one's opponent penalised.
To descend sharply or steeply.
To cause to descend, dunk; to plunge something into water.
To jump headfirst toward the ground or into another substance.
To undertake with enthusiasm.
To swim under water.
To explore by diving; to plunge into.
To plunge or to go deeply into any subject, question, business, etc.; to penetrate; to explore.
To jump into water head-first.