adverb

1. in or into one gathering, group, mass, or place a reunion to bring the family together
2. in or into contact, collision, union, etc. with each other the cars skidded together
3. considered collectively; added up winning more than all the others together
4. 1. with one another; in association or companionship to spend a week together
   2. by joint effort together they were able to lift the sofa
5. at the same time; simultaneously shots fired together
6. in succession; continuously sulking for three whole days together
7. in or into agreement, cooperation, etc. to get together on a deal
8. in or into a unified whole

Etymology: ME togeder < OE togædre, togadere < to (see to) + gædre, together < base of gaderian (see gather)

adjective

1. in the same place; with one another; not apart the family will be together for the holidays
2. ☆ Slang having fully developed one's abilities, ambitions, etc.; having an integrated personality