That which acts as an astringent, causing contraction of soft tissue to restrict the flow of blood.
An astringent taste.
Tact and subtle skill in dealing with people so as to avoid or settle hostility.
The art and practice of conducting international relations by negotiating alliances, treaties, agreements etc., bilaterally or multilaterally, between states and sometimes international organizations, or even between polities with varying status, such as those of monarchs and their princely vassals.