Definition:
every can be used as an adjective to refer to all of the individual members or items in a group or set. For example, when referring to a group of people, you might say 'every student' or 'each student' to refer to all of them. When referring to a set of objects, you might say 'every shirt' or 'each shirt' to refer to all of them.
Rules:
every is used to refer to all individual items (people, objects, etc.) in a given group or set.
Examples:
1. Every student in the class raised their hand.
2. She bought every shirt in the store.
3. Every moment we spend together is precious.
Tips:
when using 'every' to refer to a group of people, it is more appropriate to use 'each' or 'every one' instead. This is because 'each' or 'every one' implies a sense of individual importance and responsibility.