Anagrams of: DEFINITEARTICLE

• express congratulations

• (chemistry) a surface forming a common boundary between two things (two objects or liquids or chemical phases)

• (computer science) a program that controls a display for the user (usually on a computer monitor) and that allows the user to interact with the system

• the overlap where two theories or phenomena affect each other or have links with each other

• (computer science) computer circuit consisting of the hardware and associated circuitry that links one device with another (especially a computer and a hard disk drive or other peripherals)

• a substance for cleaning the teeth; applied with a toothbrush

• working for yourself

• a writer or artist who sells services to different employers without a long-term contract with any of them

• serving for wages in a foreign army

• work independently and on temporary contracts rather than for a long-term employer

• Infect again

• endorsed authoritatively as having met certain requirements

• fit to be certified as insane (and treated accordingly)

• holding appropriate documentation and officially on record as qualified to perform a specified function or practice a specified skill

• (especially of incident sound or light) bent or sent back

• cause (a liquid) to enter by penetrating the interstices

• enter a group or organization in order to spy on the members

• pass into or through by filtering or permeating

• pass through an enemy line; in a military conflict

• make clear and (more) comprehensible

• make clear by removing impurities or solids, as by heating