Strictly speaking, it was not a vertical line.とは 意味・読み方・使い方

Strictly speaking, it was not a vertical line.

Two lines cross [meet] at right angles.

a line drawn vertically

The two lines cross each other at right angles.

adjust with a plumb line so as to make vertical

a vertical line

This line is parallel to that.

Strictly speaking, the theory is not correct.

Well, broadly speaking that's right.

Parallel lines do not intersect each other.

Parallel lines don't intersect each other.

it grew linearly

painters who are in fact anything but unsophisticated

Truthfully, if I'd said I didn't have any regrets over my snap decision I'd have been lying.

a ragged line

bluntly direct and outspoken but good-natured

Two lines are perpendicular to each other.

the quality of being parallel to the horizon

of something, not being bent or curved

It was (a case of) diamond cut diamond.

That line was endlessly continuing.

That track was endlessly continuing.

a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point

Parallel lines will never meet, even over cosmically large distances.

draw a line perpendicular to the wavefront

This line looks like it is snapping.

This is, strictly speaking, a mistake.

This is, strictly speaking, a mistake.

Frankly, that was a failure.

parallels never meet