| collinear ham-xatt Fr.: colinéaire    Lying on the same straight line. Collinear points are a set of points on the same line. | 
| collinear forces niruhâ-ye ham-xatt Fr.: forces collinéaires    A system of two or more forces that lie along the same → line of action. | 
| collinearity ham-xatti Fr.: collinéarité    A mathematical property where all points lying on a line initially still lie on a line after transformation. |