noun, noun which may take the genitive case particle 'no'
reference point; datum point; origin
A point used as a basis for measurement, calculation, or comparison. Common in technical, mathematical, and planning contexts.
地図上の基点から距離を測る。
Measure the distance from the reference point on the map.
この計画の基点は昨年のデータです。
The starting point for this plan is last year's data.
Compound of 基 (base, foundation) and 点 (point). The meaning is transparent from its components.