- A kind of scallop or pecten. Also <em>queen, squin.</em>
- A European scallop (<spn>Pecten opercularis</spn>), used as food.
- A <xref>quintuplet</xref>.
- A <xref>European</xref> <xref>scallop</xref>, Pecten opercularis, used as <xref>food</xref>.
- one of five children born at the same time from the same pregnancy