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+# πίστις/pistis
+This word is an idea. It is a noun.
+
+* This word can mean trust, belief, or faith.
+* This word can mean a set of things that people believe.
+* This word can mean faithfulness.
+    * Sometimes this word is used to talk about a person who keeps believing or trusting in someone or something.
+    * Sometimes this word is used to talk about a person who does what he says he will do.
+* This word can mean an oath or pledge. This is the act of promising to be faithful to someone.