Nugget (noun)

1. A small lump or piece, especially of gold or other precious metal.
2. A small, compact, and valuable piece of information or advice.
3. A small, bite-sized piece of chicken or other meat, often breaded and fried.

Origin:

Mid 16th century: probably of low german origin; compare with low german nogget, diminutive of nogge "a small lump".

Examples:

1. He found a small gold nugget in the stream.
2. The book was full of nuggets of wisdom.
3. The nugget is a popular menu item in fast food restaurants.
4. The nugget of information was helpful in solving the problem.
5. The nugget of gold was worth a lot of money.