noun

1. A repair or corrective action.

   “That plumber's fix is much better than the first one's.”

2. A difficult situation; a quandary or dilemma; a predicament.

   “It rained before we repaired the roof, and were we in a fix!”

3. A single dose of an addictive drug administered to a drug user.

verb

1. To pierce; now generally replaced by transfix.

2. To attach; to affix; to hold in place or at a particular time.

   “A dab of chewing gum will fix your note to the bulletin board.”

3. To mend, to repair.

   “That heater will start a fire if you don't fix it.”

Synonyms: join, put together, unite, doctor, rig, patch, put to rights, rectify