Definitions
1.adjectiveConnected to or depending on something else; comparative.
2.adjective(of a URL, URI, path, or similar) Expressed in relation to another item, rather than in complete form."The relative URL /images/pic.jpg, when evaluated in the context of http://example.com/docs/pic.html, corresponds to the absolute URL http://example.com/images/pic.jpg."
3.adjective(grammar) That relates to an antecedent.
4.adjectiveHaving the same key but differing in being major or minor.
5.adjectiveRelevant; pertinent; related."relative to your earlier point about taxes, ..."
6.adjectiveCapable to be changed by other beings or circumstance; conditional.