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significant point
avia.	основна точка (приклад вживання: https://zakon.rada.gov.ua/rada/show/z0727-19/ed20190416#n110 bojana)
English thesaurus
significant point
avia., avia., ICAO	A specified geographical location used in defining an ATS route or the flight path of an aircraft and for other navigation and ATS purposes
avia., Canada	An expression used to describe a NAVAID, a fix derived from a NAVAID, or a geographical location as expressed in latitude and longitude