odd one out

[gothic]

which is the odd one out OLD, AWN, GROVE, LACK,RANGE

[Peter Pedant]

erm wild guess....

Old

the others, you can take out one letter and still make a word?

Lack - lac or ack

a bit iffy I know

[Marsh]

Od is a word, two in fact, both rather obscure. 

Could the link be  (G)old, (F)awn, (B)lack and (O)range leaving Grove as the odd one out?

 

[Marsh]

P.S  I wouldn't have thought of adding letters, Peter, if you hadn't first tried taking them away. Thank you.