Surge
Part of speech: noun
Definition: The swell or heave of the sea. (FM 55-501). A sudden rush, flood or increase which is transient. A sudden electrical spike or increase of voltage and current. The maximum amplitude of a vehicles' forward/backward oscillation
Part of speech: verb
Definition: To rush, flood, or increase suddenly. To accelerate forwards, particularly suddenly. To slack off a line.
Example sentence: The initial two or three wins that you get really give you a surge in confidence. That helps for the following games.
Billow
Part of speech: verb
Definition: To surge or roll in billowsTo swell out or bulge
Part of speech: noun
Definition: A large wave, swell, surge, or undulating mass of water, smoke or sound