"Aunt Toma is over there."
Translation:Тітка Тома там.
"There" and "over there" can be translated as там. Same as там, он там, ось там can be translated as "there". Or "over there". All of them are more or less interchangeable.
And about "is over there" and "over there": since we skip "to be" in present tense i.e. we say Тітка Тома там rather than Тітка Тома є там, it's ambiguous from the point of view of translating to English whether it means "Aunt Toma there" or "Aunt Toma is there"