an·oth·er / əˈnə[voicedth]ər/ • adj. & pron. 1. used to refer to an additional person or thing of the same type as one already mentioned or known about; one more; a further: [as adj.] have another drink [as pron.] they have two practices, one in the morning and another in the afternoon. ∎  [usu. as adj.] used with a proper name to indicate someone or something's similarity to the person or event specified: this will not be another Vietnam.2. used to refer to a different person or thing from one already mentioned or known about: [as adj.] come back another day. | [as pron.] moving from one place to another. ∎  [adj.] used to refer to someone sharing an attribute in common with the person already mentioned: his kiss with another man caused a tabloid rumpus.

another another day, another dollar saying recorded first (in the late 19th century) in the form more days, more dollars, referring to the custom of paying sailors by the day, so that the longer the voyage, the greater the financial reward. Later uses indicate a development of the phrase as a world-weary comment on routine toil to earn a living.
another place the other House of Parliament (traditionally used in the Commons to refer to the Lords, and vice versa). The expression was used in the Lords by Lord Granville in 1883, ‘I hear that the question is to be asked in another place by Mr. Warton.’

See also one man's meat is another man's poison, one good turn deserves another.

another XIII. ME. an other (in two words as late as XVI), i.e. AN1, OTHER.