to the greatest degree or extent; completely or entirely; (`full' in this sense is used as a combining form)
Fully grown. He didn't fully understand. Knew full well. Full-grown. Full-fledged.
source: WordNet 3.0
sufficiently; more than adequately
The evidence amply (or fully) confirms our suspicions. They were fully (or amply) fed.
source: WordNet 3.0
referring to a quantity
The amount was paid in full.
source: WordNet 3.0
In a full manner or degree; completely; entirely; without lack or defect; adequately; satisfactorily; as, to be fully persuaded of the truth of a proposition.