General Synonyms:
* Adaptability
* Flexibility
* Malleability
* Multifaceted
* Polyvalence
* Resourcefulness
* All-roundness
* Dexterity
* Talent
* Skill
More Specific Synonyms:
* For skills: Multi-talented, all-rounder, jack-of-all-trades
* For objects: Multi-purpose, multi-functional, convertible
* For people: Multi-skilled, resourceful, adaptable
The best synonym to use will depend on the specific context and the nuance you want to convey.