Value

The particular way someone or something is, especially: The essential or innate characteristics of a person or thing which will always tend to…

The particular way someone or something is, especially: The distinguishing characteristic of a person or thing, understood as its general class, sort…

Any fleet of maritime vessels, and especially the entire fleet of any particular nationality, including vessels that are commercial, military, or…

Required, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.

Either directly or indirectly preceded or followed by an auxiliary verb, often must: of necessity or need; necessarily, indispensably.