Undertitle

noun
1.
the distinguishing name of a book, poem, picture, piece of music, or the like.
2.
a descriptive heading or caption, as of a chapter, section, or other part of a book.
3.
title page.
4.
a descriptive or distinctive appellation, especially one belonging to a person by right of rank, office, attainment, etc.:
the title of Lord Mayor.
5.
Sports. the championship:
He won the title three years in a row.
6.
an established or recognized right to something.
7.
a ground or basis for a claim.
8.
anything that provides a ground or basis for a claim.
9.
Law.

legal right to the possession of property, especially real property.
the ground or evidence of such right.
the instrument constituting evidence of such right.
a unity combining all of the requisites to complete legal ownership.
a division of a statute, lawbook, etc., especially one larger than an article or section.
(in pleading) the designation of one’s basis for judicial relief; the cause of action sued upon, as a contract or tort.

10.
Ecclesiastical.

a fixed sphere of work and source of income, required as a condition of ordination.
any of certain Roman Catholic churches in Rome, the nominal incumbents of which are cardinals.

11.
Usually, titles. Movies, Television.

a subtitle in the viewer’s own language:
an Italian movie with English titles.
any written matter inserted into the film or program, especially the list of actors, technicians, writers, etc., contributing to it; credits.

adjective
12.
of or relating to a title:
the title story in a collection.
13.
that decides a title:
a title bout.
verb (used with object), titled, titling.
14.
to furnish with a title; designate by an appellation; entitle.
noun
1.
the distinctive name of a work of art, musical or literary composition, etc
2.
a descriptive name, caption, or heading of a section of a book, speech, etc
3.
See title page
4.
a name or epithet signifying rank, office, or function
5.
a formal designation, such as Mr, Mrs, or Miss
6.
an appellation designating nobility
7.
(films)

short for subtitle (sense 2)
written material giving credits in a film or television programme

8.
(sport) a championship
9.
(property law)

the legal right to possession of property, esp real property
the basis of such right
the documentary evidence of such right: title deeds

10.
(law)

the heading or a division of a statute, book of law, etc
the heading of a suit or action at law

11.

any customary or established right
a claim based on such a right

12.
a definite spiritual charge or office in the church, without appointment to which a candidate for holy orders cannot lawfully be ordained
13.
(RC Church) a titular church
verb
14.
(transitive) to give a title to