Noun

• S: (n) radio, radiocommunication, wireless (medium for communication)
• domain term category
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• S: (n) radio receiver, receiving set, radio set, radio, tuner, wireless (an electronic receiver that detects and demodulates and amplifies transmitted signals)
• S: (n) radio, wireless (a communication system based on broadcasting electromagnetic waves)
• direct hyponym / full hyponym
• part meronym
• direct hypernym / inherited hypernym / sister term
• S: (n) communication system (a system for communicating)
• S: (n) system (instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity) "he bought a new stereo system"; "the system consists of a motor and a small computer"
• S: (n) instrumentality, instrumentation (an artifact (or system of artifacts) that is instrumental in accomplishing some end)
• S: (n) artifact, artefact (a man-made object taken as a whole)
• S: (n) whole, unit (an assemblage of parts that is regarded as a single entity) "how big is that part compared to the whole?"; "the team is a unit"
• S: (n) object, physical object (a tangible and visible entity; an entity that can cast a shadow) "it was full of rackets, balls and other objects"
• S: (n) physical entity (an entity that has physical existence)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• derivationally related form

Verb

• S: (v) radio (transmit messages via radio waves) "he radioed for help"

Adjective

• S: (adj) radio (indicating radiation or radioactivity) "radiochemistry"