the act of starting something for the first time; introducing something new; "she looked forward to her initiation as an adult"; "the foundation of a new scientific society"; "he regards the fork as a modern introduction"
a formal entry into an organization or position or office; "his initiation into the club"; "he was ordered to report for induction into the army"; "he gave a speech as part of his installation into the hall of fame"
a gradual decrease; as of stored charge or current
the process of gradually becoming inferior
the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
an inferior state resulting from the process of decaying; "the corpse was in an advanced state of decay"; "the house had fallen into a serious state of decay and disrepair"
fall into decay or ruin; "The unoccupied house started to decay"
undergo decay or decomposition; "The body started to decay and needed to be cremated"
a streak of light in the sky at night that results when a meteoroid hits the earth's atmosphere and air friction causes the meteoroid to melt or vaporize or explode
the choicest or most essential or most vital part of some idea or experience; "the gist of the prosecutor's argument"; "the heart and soul of the Republican Party"; "the nub of the story"
a single whole grain of a cereal; "a kernel of corn"
the inner and usually edible part of a seed or grain or nut or fruit stone; "black walnut kernels are difficult to get out of the shell"
a question raised for consideration or solution; "our homework consisted of ten problems to solve"
a state of difficulty that needs to be resolved; "she and her husband are having problems"; "it is always a job to contact him"; "urban problems such as traffic congestion and smog"
(computer science) a window for an active application
the part of a scene that is near the viewer
move into the foreground to make more visible or prominent; "The introduction highlighted the speaker's distinguished career in linguistics"; "highlight the passage so that you can find it again when you open the book"
not derived or copied or translated from something else; "the play is original; not an adaptation"; "he kept the original copy and gave her only a xerox"; "the translation misses much of the subtlety of the original French"
preceding all others in time or being as first made or performed; "the original inhabitants of the Americas"; "the book still has its original binding"; "restored the house to its original condition"; "the original performance of the opera"; "the original cast"; "retracted his original statement"
being or productive of something fresh and unusual; or being as first made or thought of; "a truly original approach"; "with original music"; "an original mind"
(of e.g. information) not secondhand or by way of something intermediary; "his work is based on only original, not secondary, sources"