A "something-oid" is a term meaning "like a something". It should be self-evident that any object is like itself.
That depends on what the vector, itself, represents. For example, if the vector represents velocity, then the magnitude of the vector represents speed. If the vector represents displacement, then the magnitude of the vector represents distance.
A word that means something that repeats itself is "recurrent." This term refers to events, themes, or patterns that occur repeatedly over time. Another related word is "iterative," which emphasizes repetition in processes or actions.
composite or not a prime number (as long as you mean divisible by something other than 1 and itself)
The number 254 itself is not special. There can be many things associated with this particular number. The number 254 can mean something to one person but something completely different to another.
This is called a symbol. A symbol is a tangible object or image that represents an abstract concept or idea. It has both its literal meaning and a deeper, associated meaning.
A metaphor is an object, person, or animal that represents something beyond itself
symbol.
This sounds very much like a symbol (Something that means itself and something more).
symbol
A person, place, thing, or an event that has meaning in itself and stands for something beyond itself as well; it can signify something else. irony. A term that suggests some sort of discrepancy between appearance and reality; says one thing and means another. antagonist
a person, place, or thing, that stands for itself and for something beyond itself .... That's not the answer we want man.
allegory
The task was repeatable so was boring. Repeatable means something that repeats itself.
The task was repeatable so was boring. Repeatable means something that repeats itself.
A "something-oid" is a term meaning "like a something". It should be self-evident that any object is like itself.
Self-perpetuation refers to the ability of something to continue or sustain itself without external influence. It is the ability of a system or process to maintain or reproduce itself without relying on external factors for support.