Send

Send refers to the act of moving a card from field, hand, Main or Extra Deck to the Graveyard.

Sending cards to the graveyard
Cards can be sent to the Graveyard in many ways:
 * A Normal, Quick-Play or Ritual Spell Card, or a Normal or Counter Trap Card will be sent to the Graveyard after resolving (or after the whole Chain in which it was activated in resolves if it was part of one) if it is still on the field and doesn't have an effect that keeps it on the field (such as "Swords of Revealing Light").
 * A Spell Card or Trap Card will be sent to the Graveyard at the end of the Chain it was activated in if its activation was negated.
 * Synchro Material Monsters are sent to the Graveyard when performing a Synchro Summon.
 * As a cost (that uses the term "send"), like "Elemental HERO Neo Bubbleman".
 * As the result of an effect (that uses the term "send"), like "Codarus" or "Polymerization".
 * As a result of:
 * Being Tributed
 * Being destroyed
 * Being discarded
 * Being detached

What sending is not
However, note that cards sent from your hand to the Graveyard are not automatically classed as discarded or destroyed.

Proper knowledge of the difference between send, Tribute, destroy, discard and detach could mean the difference between a win and a loss in playing the game. For example, "The Fabled Cerburrel" activates its effect when discarded to the Graveyard by "Card Destruction" but not when sent to the Graveyard by "Hand Destruction".

Another example is the effect of "Dark End Dragon". Because its effect sends monster to the Graveyard, it cannot be Chained to by the effects of "Stardust Dragon", "My Body as a Shield", or "Destruction Jammer" because it does not destroy the monster.

This means that the effects of "Sangan" and "Dandylion" activate when they are Tributed, as their card effects state "When this card is sent from the field to the Graveyard..."; therefore, they do not have to be destroyed, unlike cards such as "Giant Rat" and "Shining Angel".

Banishing and returning banished cards
Cards can only be sent to the Banished Zone by a card effect. Monsters that would normally be sent to the Graveyard are sent to the Banished Zone instead if "Dimensional Fissure" is active; all cards that would normally be sent to the Graveyard are sent to the Banished Zone instead if "Banisher of the Radiance" or "Banisher of the Light" is face up on the field, or if "Macro Cosmos" is active.

Returning a banished card to the Graveyard is not considered to be sending a card to the Graveyard. Thus, "Miracle Dig" and "Fortune's Future" can be used to return monsters to the Graveyard. Even if a card like "Macro Cosmos" is active, the returned monster will not be banished.