I'm sure this is outlined in the rules somewhere but does anyone have to actually hear the verbal component of a spell? Like, in a situation where a very loud noise is drowning out their voice but not silencing them?

— Potion of Potion-making (@teenmethuselah) February 4, 2018

The verbal component of a spell requires you to make sound. Being in a loud area doesn't interfere with the magic, but the casting isn't possible if you're unable to make sound (you're gagged, in an area of magical silence, or otherwise incapable of making an utterance). #DnD https://t.co/8UTdtL81qo

— Jeremy Crawford (@JeremyECrawford) February 8, 2018

@JeremyECrawford When a spell consumes material components do they become apart of the final product? e.g. Raise Dead requires a diamond. Does that diamond become apart of the target of the spell or is it consumed by the magic fueling the spell.

— Ezzard Eyethief (@EzzardEyethief) March 20, 2018

If casting a spell consumes a material component, that component is destroyed. #DnD https://t.co/1yOCr38M4A

— Jeremy Crawford (@JeremyECrawford) March 21, 2018

Can you counter spell it?

— Nathan Moore (@RealNathanMoore) January 26, 2018

Counterspell counters spells. #DnD https://t.co/1BVasuYZhB

— Jeremy Crawford (@JeremyECrawford) January 26, 2018

@JeremyECrawford In melee, if one combatant goes invisible on their action, then simply moves away, does this trigger an AOO?

— Darrell Rodgers (@DarrellARodgers) March 9, 2018

Similar to the quoted tweet, if you cannot see the creature because it is invisible, then you cannot make an opportunity attack against it. But you can attack an invisible creature
Why not opportunity attack?

— Darrell Rodgers (@DarrellARodgers) March 9, 2018

An opportunity attack is triggered by seeing a creature leave your reach. It's the trigger that relies on sight. On their own, attacks don't rely on sight. #DnD https://t.co/zv3zAfEh31

— Jeremy Crawford (@JeremyECrawford) March 9, 2018