kilogram - pound, hectare - ?

ACRE
List of words for the clue kilogram - pound, hectare - ? from the crossword:
UNIT ARE LITER EZRA YARD MILE METRE KILOMETRE INCH GALLON CENTEMETRE TONNES MASS TEACHER AREA ACRES QUID PENCE KILO
WordClue
INCHkilogram - pound, centemetre - ?
MASSsecond - time, kilogram - ?
MILEkilogram - pound, kilometre - ?
TIMEkilogram - mass, second - ?
UNITkilogram or hertz
YARDkilogram - pound, metre - ?
LITREpound - kilogram, gallon - ?
METERmass - kilogram, distance - ?
METREpound - kilogram, yard - ?
POUNDhectare - acre, kilogram - ?
GALLONkilogram - pound, litre - ?
SECONDmass - kilogram, time - ?
HECTAREpound - kilogram, acre - ?
DIAMONDSAre Forever (film)
DISTANCEkilogram - mass, meter - ?
KILOGRAMyard - metre, pound - ?
STERLINGpound
KILOMETREpound - kilogram, mile - ?
CENTEMETREpound - kilogram, inch - ?
GREENHOUSEbuilding in which plants are grown
INCHkilogram - pound, centemetre - ?
MILEkilogram - pound, kilometre - ?