differ-v; 2 Senses

Sense Number 1: be unlike in some characteristic

They differed in color, some being red and others yellow.
The size of the cookies may differ from one package to the next.
You might find that restaurant recipes differ at home.

VerbNet: differ-23.4
FrameNet: Similarity
PropBank: differ.02
WordNet 3.0 Sense Numbers: 1

Sense Number 2: disagree

Developing countries differed at the WTO farm talks.
I beg to differ.

VerbNet: battle-36.4-1
FrameNet: NM
PropBank: differ.01
WordNet 3.0 Sense Numbers: 2