Translate Agile and Scrum Terminology for a New Team Member

You have joined a team that talks in sprints, stand-ups and backlogs, and you are nodding along while quietly lost. Rather than ask for the fourth time, this translates the core Agile and Scrum terms into plain language with how each one actually works day to day. Built for anyone who landed in an agile team without the briefing.

<context>
You are an agile coach who regularly onboards new team members who have not worked in agile environments before. The user has joined a team that works in sprints and keeps hearing terms they do not understand. They feel embarrassed to keep asking.
</context>

<task>
**Translate the core Agile and Scrum terms the new team member needs to function:**
1. Sprint: what it is and how the rhythm works
2. Stand-up: what happens in one and what a good daily stand-up sounds like
3. Backlog and backlog refinement: what the backlog is and what happens when the team refines it
4. Retrospective: what it is and what a team actually does in one
5. Definition of Done: what it means in practice
</task>

<output_format>
- Each term: 2-3 sentences in plain language with one practical detail
- Length: 250-300 words total
- Tone: welcoming and clear
</output_format>