Semi-liquidity refers to the state between liquidity and illiquidity, where an asset or security can be easily converted to cash but with some delay or cost. Synonyms for semi-liquidity could be partially liquid, moderately liquid, not fully liquid, reasonably liquid, or somewhat liquid. These terms indicate that the asset or security is not completely illiquid but may require more time, effort, or expense to turn into cash than highly liquid assets like cash or government-backed securities. Other related concepts that could serve as synonyms for semi-liquidity include near-liquidity, quasi-liquidity, and short-term liquidity, which connote the asset's ability to be converted to cash in the short run but with some constraints.