Send

Send refers to a card, whether it be in your Deck, hand or on your side of the field, going to the Graveyard. A card is sent from the field to the Graveyard when it is destroyed or Tributed. However a card being sent to the Graveyard does not necessarily mean it was destroyed or Tributed. For example, Dark End Dragon can send 1 monster to the Graveyard. Since the sent monster is not destroyed, the effect of Dark End Dragon can not be negated by effects that negate destruction.

Similarly, it is important to understand that cards discarded from your hand are sent to the Graveyard, but not every card sent from your hand to the Graveyard is considered discarded. Certain cards have effects that only activate when they are discarded. So a card like Morphing Jar which causes both players to discard all cards in their hands is completely different from the effect of Hand Destruction which forces both players to send 2 cards in their hand to the Graveyard.