noun - one of the two upper chambers that receive blood returning to the heart, allowing it to flow into the ventricles for further circulation
noun, technical - a substance used to fill gaps, spaces, or irregularities in a surface, material, or structure, often to create a smooth or even finish
noun - the authority given to a political party or leader by the voters to carry out specific policies or govern after winning an election
noun - a strip of material that you wear around your wrist to show who you are, who you belong to, or who you support