One and all Definition 1 of 1Pro Tip 1/3Inclusive Language Used to include every person in a group, emphasizing no one is excluded. We should thank one and all for their hard work and commitment. Pro Tip 2/3Friendly Tone Often used to create a friendly atmosphere, suggesting a warm welcome. One and all are invited to the village feast! Pro Tip 3/3Formal Gatherings Appropriate for formal events, such as speeches or official announcements. We gather here to honor one and all for their service.