Here is a list of actions that can be taken on your turn.
- Cast a spell
- Make an attack
- Roll a Skill Check
- Ready an action to use later
- Use an item. I.E. a potion
- Any class specific action.
- Dash- Double your speed for this turn
- Disengage- Your move does not provoke attacks of opportunity
- Dodge- Until your next turn, all attacks against you have disadvantage, and have advantage on any dex save you make.
- Help- The target you help gains advantage on their next attack roll, or skill check.
- Hide- Make a Dex (stealth) check to conceal yourself.
- Search- Look for an object that may need a Wisdom (perception) check.