english
1
general::
In addition to the idioms beginning with RAT, Also see LIKE A DROWNED RAT; SMELL A RAT.
American Heritage Idioms
2
general::
rat on sb/sth
to be not loyal to someone, especially by giving away secret information about them, or to fail to do something that you said you would do
• He ratted on us.
• They ratted on the deal.
Cambridge-Phrasal Verbs
3
general::
noun ADJ. black, brown | laboratory | sewer | water RAT + VERB scurry, scuttle A brown rat scurried across the road. | squeak | gnaw Rats had gnawed through the wires. | carry/spread disease RAT + NOUN catcher The dog was a useful rat catcher in the warehouse. | droppings | poison PHRASES rat-infested a rat-infested cellar
Oxford Collocations Dictionary
4
general::
noun
rodent:
A rat ran from the house.
Simple Definitions