midpoint
n. B2 Upper Intermediate US //ˈmɪdˌpɔɪnt// UK //mˈɪdpɔɪnt// mid·point
n. the point that is exactly halfway between two other points. You use this to describe the middle of a line or the middle of a period of time.
n. the point that divides a line segment or an interval into two equal parts. Often used to describe the central position in a sequence or the halfway point in a journey.
The midpoint of the line is exactly here.
We reached the midpoint of our three-day hike just as the sun began to set.
The architect calculated the midpoint of the building's facade to ensure the central window aligned perfectly with the garden's axis.