(mechanics) A polygonal figure the sides of which are vectors representing several forces acting simultaneously upon one point, so that the vector necessary to make the figure closed is the resulta...

plural of account day

(slang, derogatory) A Jewish New Yorker.

(ergative) To (cause to) move in continuous contact with a surface. / (intransitive) To move on a low-friction surface. / (intransitive, baseball) To drop down and skid into a base.