(Judaism) an initiation ceremony marking the 13th birthday of a Jewish boy and signifying the beginning of religious responsibility; "a bar mitzvah is an important social event"
confirm in the bar mitzvah ceremony, of boys in the Jewish faith
any structure that branches out from a central support
the representation of a figure or solid on a plane as it would look from a particular direction
a prediction made by extrapolating from past observations
the projection of an image from a film onto a screen
the acoustic phenomenon that gives sound a penetrating quality; "our ukuleles have been designed to have superior sound and projection"; "a prime ingredient of public speaking is projection of the voice"
(psychiatry) a defense mechanism by which your own traits and emotions are attributed to someone else
any solid convex shape that juts out from something