Attacks
Serve - standing outside the boundaries and moving the ball into the opponent's side of the court. this may be done overhand, underhand, or while jumping
Ace - when a serve lands on the opponent's side of the court or travels outside the court after being touched
Return - when a ball is successfully moved to the other side of the court
Hit/Attack - jumping and striking the ball overhand
Spike - jumping and striking the ball at a sharp downward angle
Set - passing the ball close to the net to assist a spiker in killing the ball
Kill - a hit/attack from the attacking team that results in a point
Dig - a defensive maneuver in which a player bumps/passes a spiked or hard hit ball
Pass - a maneuver intended to move the ball to a teammate, usually a setter
Bump - passing by joining your forearms together
Block - a defensive maneuver in which players jump up with the intention to stop/redirect a spike, hit/attack
Styles
4-2 - four hitters, two setters. Setters set from the middle to the outside, where there are two front-row attackers
6-2 - six hitters, but two can act as setters at a given time. Similar to a 4-2, but a back row player serves as a setter
5-1 - five hitters, one setter. When the setter is in the back row, there are three front-row attackers...and when the setter is in the front row, there are two front-row attackers
Positions of the court
Setters - responsible for passing the ball to attackers who can kill the ball into the opponents' court, usually after the second touch
Liberos - responsible for defense in which they receive the attack or serve. They wear a different color jersey than other teammates
Middle blockers/hitters - attackers that usually play near the middle/setter and are specialized in blocking as they attempt to stop plays from their opponents
Outside/Left side hitters - attackers from near the left antenna
Opposite/Right-side hitters - defenders who are responsible for blocking against the opponents' attacks
Sources: (1) (2)