Real Dictionary

-there in American English
combining form: a combining form meaning “ wild animal, beast,” used in the formation of compound words, usually denoting extinct mammals, as adaptions of zoological taxa ending in -therium or -theria

there
pronoun: There is used as the subject of the verb 'be' to say that something exists or does not exist, or to draw attention to it.

there in American English
at or in that place
adjective: (used for emphasis, esp. after a noun modified by a demonstrative adjective)
adverb: in or at that place (opposed to here)
interjection: (used to express satisfaction, relief, encouragement, approval, consolation, etc.)
noun: that state or condition
pronoun: (used to introduce a sentence or clause in which the verb comes before its subject or has no complement)

there in British English
adjective: who or which is in that place or position
adverb: in, at, or to that place, point, case, or respect
exclamation: an expression of sympathy, as in consoling a child
noun: that place
pronoun: used as a grammatical subject with some verbs, esp be, when the true subject is an indefinite or mass noun phrase following the verb as complement