All 4 Uses

relative
in
The Hunt for Red October
(Auto-generated)

Sending Ritter or Greer out would be far too obvious, whereas you, on the other hand, are a relative—†
Chpt 6.
The relatively flat boundary where warmer surface water met colder depth water was a semipermeable barrier which tended to reflect sound waves.†
Chpt 7. *
It had to fit into a relatively small hull.†
Chpt 8.
This gave half the squadron relatively direct courses to their target; the other half had to curve around, careful to keep well beyond effective radar coverage; all had to turn exactly on cue.†
Chpt 10.

Definitions:

(1) (relative as in: the relative importance)
compared with something else (not an absolute value or not complete)
(2) (relative as in: they are relatives)
connected
in various senses, including:
- a person related by blood or marriage -- as in "The hospital won't let me visit her because I'm not a relative."
- a plant or animal related by origin or grouping -- "The closest relative of the dog is the gray wolf."
(3) (relative as in: questions relative to the topic)
related to
(4) (meaning too rare to warrant focus)
More specialized and less common senses of the word are found in philosophy, grammar, and music. Consult a comprehensive dictionary if you wish to see those. All senses have to do with relationships.