- fractalA mathematical set that has a non-integer and constant Hausdorff dimension, corresponding to a geometric figure or object that is self-similar at arbitrarily small scales and thus has infinite complexity.
- PontefractA town in the Metropolitan Borough of Wakefield, West Yorkshire, England (OS grid ref SE4522).
- fractTo break; to violate.
- fracto-Forming terms relating to the fracture or breaking of something.
- fractusA cloud species which consists of broken shreds of cloud; scud.
- retrofractBent sharply back, so as to appear broken.