Reference is a relation between objects

Inertia is a property of matter.

1. An act of referring: filed away the bài viết for future reference.
2.
a. Significance in a specified context: Her speeches ref·er·ence (rfr-ns, rfrns)
n.
1. An act of referring: filed away the bài viết for future reference.
2.
a. Significance in a specified context: Her speeches have special reference to environmental policy.
b. Meaning hoặc denotation.
3. The state of being related hoặc referred: with reference to; in reference to.
4. A mention of an occurrence hoặc situation: made frequent references to her promotion.
5.
a. A note in a publication referring the reader to another passage hoặc source.
b. The passage hoặc nguồn so referred to.
c. A work frequently used as a source.
d. A mark hoặc footnote used to direct a reader elsewhere for additional information.
6. Law
a. Submission of a case to a referee.
b. Legal actions conducted before hoặc bởi a referee.
7.
a. A person who is in a position to recommend another hoặc to vouch for his hoặc her fitness, as for a job.
b. A statement about a person's qualifications, character, and dependability.