Order Book
An order book records bids and asks for an asset at different price levels.
Category
Market Plumbing
These words describe how buyers and sellers discover prices and how trades can fill at a different level than expected.
How to recognize this theme
Terms you see when orders meet in a market.
In a daily board, this category groups terms by their shared role. Look for four cards that describe the same mechanism, risk area, or workflow rather than four words that merely sound similar.
Educational context
These entries are vocabulary notes for learning. They are not project endorsements, token recommendations, exchange rankings, or trading signals.