All 15 Uses of

relative
in
Unbroken, by Hillenbrand

The B-17 and its soon-to-be-introduced cousin, the gigantic B-29, had wide, low wings that, with the fuselage, formed a relatively flat surface that could surf onto water.†
p. 85.2

relatively = in comparison to something else

Mutsuhiro, whose father, a pilot, seems to have died or left the family when Mutsuhiro was relatively young, grew up on luxury's lap, living in beautiful homes all over Japan, reportedly waited on by servants and swimming in his family's private pool.†
p. 233.6

Love to all relatives and friends.†
p. 247.0 *

relatives = people related by blood or marriage

Newspapers were relatively easy to come by in Omori.†
p. 250.7

relatively = in comparison to something else

The last war was full of such instances and much suffering and heartaches could have been avoided by the transmittal of reliable information to the parties concerned regarding the whereabouts of men (in such cases); It is one of the purposes of this program to alleviate this condition and furnish speedy, reliable and authentic message service to the relatives and friends of men interned in prisoner of war camps throughout Japan.†
p. 254.6

relatives = people related by blood or marriage

It makes us very happy indeed to have performed this service for our prisoners and relatives and it is out [sic] earnest wish that no other such instances of this information will be forthcoming.†
p. 255.2

The walk, six miles each way, was a tiring slog, but the work, planting and tending potatoes, was relatively easy.†
p. 281.2 *

relatively = in comparison to something else

According to Watanabe family accounts, he fled to the village of Kusakabe, where his mother and other relatives were living.†
p. 335.1

relatives = people related by blood or marriage

Mutsuhiro's other relatives were investigated, questioned, and sometimes searched.†
p. 336.6

He told people that he was a refugee from Tokyo whose relatives were all dead, a story that, in postwar Japan, was as common as white rice.†
p. 355.2

Everyone, even her relatives, had believed it was he, and the newspapers had announced Mutsuhiro's suicide.†
p. 368.2

In keeping with the goal of reconciliation, the memorial council sought the participation of relatives of the guards who'd been convicted and hanged, but the families balked, fearing ostracism.†
p. 394.7

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)
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.