How many words start with RAT?

16, from 5 letters up to 5. All of them are on this page.

What is the highest scoring word that start with RAT?

RATCH at 10 points in Scrabble, and RATCH at 10 in Words With Friends, because the two games score the tiles differently.

RATAL, RATAN, RATAS, RATCH, RATED, RATEL, RATER, RATES, RATHA, RATHE and 6 more on this page.

16 of them: RATAL, RATAN, RATAS, RATCH, RATED, RATEL, RATER, RATES, RATHA, RATHE and more.

There are 16 of them. The highest scoring is RATCH at 10 points in Scrabble, and the set averages 6.1.

Most common words first, then the rest A to Z.

The most familiar words on this page and what they mean. Tap any word for its full entry, score and anagrams.

RATES noun a local tax on property
RATED verb form of RAT: desert one's party or group of friends, for example, for one's personal advantage
RATIO noun the relative magnitudes of two quantities (usually expressed as a quotient)
RATAN noun a switch made from the stems of the rattan palms
RATCH noun mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
RATEL noun nocturnal badger-like carnivore of wooded regions of Africa and southern Asia
RATTY adjective of or characteristic of rats

Definitions from Open English WordNet, CC BY 4.0.

All of them: Word lists.