Meaning of HIGH FREQUENCY

Pronunciation:			hI'freekwunsee
WordNet Dictionary
	Definition:		[n]  a pitch that is perceived as above other pitches [n]  3 to 30 megahertz
	Synonyms:		HF, high pitch
	Antonyms:		low frequency, low pitch
	See Also:		electromagnetic spectrum, pitch, radio frequency, soprano, tenor, treble