semantic pointers
hypernym
hyponym
femtometer, femtometre, fermi
picometer, picometre, micromicron
angstrom, angstrom unit, A
nanometer, nanometre, nm, millimicron, micromillimeter, micromillimetre
micron, micrometer
mm, millimeter, millimetre
cm, centimeter, centimetre
decimeter, decimetre, dm
meter, m, metre
decameter, dekameter, decametre, dekametre, dam, dkm
hectometer, hectometre, hm
kilometer, km, kilometre, klick
myriameter, myriametre, mym