boon 1. n. 1. A benefit bestowed, especially one bestowed in response to a request. 2. A timely blessing or benefit: A brisk breeze is a boon to sailors. [Middle English.
Quantum leaps are the sole cause of the emission of electromagnetic radiation, including light, which occurs in the form of quantized units called photons. Ironically, when laymen use the term colloquially, they use it to describe large jumps in progress, when in reality a quantum leap is a very small change of state.
To jump or leap, especially with the use of the hands or a pole. 2. To accomplish something suddenly or vigorously: vaulted into a position of wealth. n. 1. The act of vaulting; a jump. 2. A piece of gymnastic equipment with an upholstered body used especially for vaulting.. a space, chamber, or passage enclosed by a vault or vaultlike structure, esp. one located underground. 3. a room or compartment for the safekeeping of valuables.