kilogram - pound, centemetre - ?

INCH
List of words for the clue kilogram - pound, centemetre - ? from the crossword:
MILE LITRE KILOMETRE HECTARE UNIT KILO YARD METRE GALLON ACRE LITER EZRA TONNES MASS QUID PENCE TIME SECOND METER
WordClue
ACREkilogram - pound, hectare - ?
MASSsecond - time, kilogram - ?
MILEkilogram - pound, kilometre - ?
TIMEkilogram - mass, second - ?
UNITkilogram or hertz
YARDkilogram - pound, metre - ?
LITREpound - kilogram, gallon - ?
METERmass - kilogram, distance - ?
METREpound - kilogram, yard - ?
POUNDmetre - yard, kilogram - ?
GALLONkilogram - pound, litre - ?
SECONDmass - kilogram, time - ?
HECTAREpound - kilogram, acre - ?
DISTANCEkilogram - mass, meter - ?
KILOGRAMinch - centemetre, pound - ?
STERLINGpound
KILOMETREpound - kilogram, mile - ?
CENTEMETREpound - kilogram, inch - ?
UNITkilogram or hertz
ACREkilogram - pound, hectare - ?