Immediate Echolalia: Echolalia is the repetition of vocalizations made by another person. Echolalia can be present in autism, Tourette syndrome, aphasia, Rubinstein-Taybi syndrome, developmental disability, schizophrenia, Asperger syndrome, Alzheimer's Disease and, occasionally, other forms of psychopathology. It is also frequently found in blind or visually impaired children, although most will outgrow this behavior. When done involuntarily, echolalia may be considered a tic. That's from Wikipedia. Just research Immediate Echolalia to see if this is what you're looking for.
An informed person is a smart person.
A toothless person is referred to as "adentulous".
An organist
Lichenologist
virologist
A word that describes where a person is from is called a demonym. It typically refers to the residents or natives of a particular place, such as New Yorker for someone from New York or Parisian for someone from Paris.
a person who likes word games
to repeat = chazar (חזר)
What do you call a person that is presenting a gift to someone? I don't think "gifter" is a word.
An example of using the word repeat in a sentence is " Can you repeat that question one more time? "
a liar
The word is referee.
"Word for word" means copied exactly. If you repeat something word for word, you repeat everything perfectly.
the answer is REPEAT
The past tense of the word "repeat" is "repeated."
The root word for replicate is "replicare," which is a Latin word meaning "to repeat" or "to copy."
Altruist.