metre - yard, kilogram - ?

POUND
List of words for the clue metre - yard, kilogram - ? from the crossword:
METER LITRE ACRE TIME HECTARE GALLON UNIT FOOT M INCH LITER STERE TONNES MASS PROSODY MEASURE KILOLITRE KILOLITER CENTARE
WordClue
ACREmetre - yard, hectare - ?
INCHkilogram - pound, centemetre - ?
MASSsecond - time, kilogram - ?
MILEkilogram - pound, kilometre - ?
TIMEkilogram - mass, second - ?
UNITkilogram or hertz
YARDkilogram - pound, metre - ?
LITREyard - metre, gallon - ?
METERmass - kilogram, distance - ?
METREpound - kilogram, yard - ?
GALLONmetre - yard, litre - ?
SECONDmass - kilogram, time - ?
HECTAREyard - metre, acre - ?
HUNDREDFranklin, yard
DISTANCEkilogram - mass, meter - ?
KILOGRAMyard - metre, pound - ?
KILOMETREpound - kilogram, mile - ?
CENTEMETREpound - kilogram, inch - ?
ACREmetre - yard, hectare - ?
GALLONmetre - yard, litre - ?