sympathy-n; 2 Senses

Sense Number 1: An emotional state of sharing the feelings of others or of support or loyalty.

Commentary: SYMPATHY[+emotion]

My sympathies are with the allies.
I knew I could count on her undying sympathy.
I have nothing but sympathy for you.

WordNet 3.0 Sense Numbers: 1, 2

Sense Number 2: A relation of affinity or harmony between people.

Commentary: SYMPATHY[+relation]
NOTE: always "in sympathy".

The two of them were in close sympathy.
We are in sympathy together.
They abandoned their jobs in sympathy with one another.

WordNet 3.0 Sense Numbers: 3