「七」(nana) means "seven" or "7". While it can also be read as "shichi," "nana" is often used for clarity, especially when counting or giving phone numbers. You use it to count things or people. Example: 「七つ」(nanatsu) means "seven things".

「七(なな)」は「7」を意味(いみ)します。「しち」と読(よ)むこともあります。数(かず)を数(かぞ)える時(とき)に使(つか)います。例(れい)：「七(なな)つ」。