Yes, tat is in the scrabble dictionary

...and is worth 3 points by itself.

find more words you can make below

Tat Definition

noun

A gene in the AIDS virus that stimulates the host cell to replicate genetic components of the virus.
from The American Heritage Dictionary of the English Language, 4th Edition
A small protein produced by a lentivirus (as HIV) that greatly increases the rate of viral transcription and replication and enhances the susceptibility of T cells to infection.
from Free Scrabble Dictionary
The viral gene that codes for the tat protein.
from Free Scrabble Dictionary

verb-transitive

To do tatting or produce (something) by tatting.
from The American Heritage Dictionary of the English Language, 4th Edition

verb

To work at tatting.
from Free Scrabble Dictionary
To make by tatting.
from Free Scrabble Dictionary

abbreviation

Thematic apperception test.
from Free Scrabble Dictionary

Find More Words!

Wildcard(?) letters appear in RED

Here are some other words you could make with the letters TAT, you can also
use this lookup tool to help you find words with our scrabble word finder.

Top Words by points

Points

att

3

2 letter words with TAT

Points

at

2

ta

2

3 letter words with TAT

Points

att

3

tat

3

Found 4 words in 0.0987 seconds