No word is ever defined in isolation from other words. We use words to define other words. We are always working within the system of language itself. Cannot step outside of it. In language, there are only differences, without any fixed terms.
Language is never neutral.
Meaning is always attributed to an object or idea by the mind and constructed through language. Pro-life Language doesn't just reflect reality, it makes reality. Think about such units as days, weeks, and years . . .