a key that will open a number of different locks, the proper keys of which are not interchangeable.
a key that opens all the locks of a set, the individual keys of which are not interchangeable Also called pass key
[mas-ter-lee, mah-ster-] /ˈmæs tər li, ˈmɑ stər-/ adjective 1. like or befitting a , as in skill or art; worthy of a ; very skillful: a masterly presentation of the budget. adverb 2. in a masterly manner. /ˈmɑːstəlɪ/ adjective 1. of the skill befitting a master: a masterly performance adj. 1530s, “overbearing;” 1660s, “skillful,” from […]
noun 1. (def 11).
noun 1. (often initial capital letters) a Freemason who has reached the third degree. 2. an expert mason.
[mas-ter-mahynd, mah-ster-] /ˈmæs tərˌmaɪnd, ˈmɑ stər-/ verb (used with object) 1. to plan and direct (a usually complex project or activity), especially skillfully: Two colonels had masterminded the revolt. noun 2. a person who originates or is primarily responsible for the execution of a particular idea, project, or the like: the masterminds of company policy. […]
noun 1. a mechanic, especially one who is thoroughly skilled, in charge of other mechanics.