Market liquidity is a crucial concept in finance and economics as it refers to the ease with which an asset can be bought or sold in the market. Synonyms for market liquidity include market depth, trading activity, transaction volume, market efficiency, and marketability. Market depth indicates the total amount of active orders to buy and sell an asset at various prices. Trading activity refers to the level of buying and selling activity in the market, while transaction volume represents the number of trades executed over a specific period. Market efficiency indicates how efficiently market participants use information to set prices, and marketability represents the ease with which an asset can be sold at a fair price.