stipulate

【原文】
You could buy a fixed amount every month in a dollar-cost-averaging plan; sign an investing contract, witnessed by family or friends, stipulating how long you will hold your investments; name the account after a goal, such as saving for college or retirement; or craft a checklist that spells out the only conditions under which you would sell.

【単語の意味（日本語）】
（契約の条件として）～を規定する、明記する