reference

As a noun library

is an institution which holds books and/or other forms of stored information for use by the public or qualified people it is usual, but not a defining feature of a library, for it to be housed in rooms of a building, to lend items of its collection to members either with or without payment, and to provide various other services for its community of users.

As a noun trills

is .

As a verb trills

is (trill).

As a noun subscript is

(printing) a type of lettering form written lower than the things around it.

As verbs the difference between related and reference

is that related is past tense of relate while reference is to refer to, to make reference to, to cite.

As an adjective related

is standing in relation or connection.

As a noun reference is

a relationship or relation ({{term|to}} something).

As nouns the difference between research and reference

is that research is diligent inquiry or examination to seek or revise facts, principles, theories, applications, etc.; laborious or continued search after truth while reference is a relationship or relation ({{term|to}} something).

As verbs the difference between research and reference

is that research is to search or examine with continued care; to seek diligently while reference is to refer to, to make reference to, to cite.

As a noun variable

is variable.

As a verb resume

is .

As a verb referring

is .

As a noun assignment is

the act of assigning; the allocation of a job or a set of tasks.

As nouns the difference between throwback and reference

is that throwback is a reversion to an earlier stage of development while reference is a relationship or relation ({{term|to}} something).

As a verb reference is

to refer to, to make reference to, to cite.