It is called double-fault when you miss both of your serves. You lose a point then.
"Double fault" ... the consequence being that he/she loses that point.
a double fault
The legal serve where the opponent fails to touch the tennis ball is called 'ACE'.
In tennis when the opposing player is unable to return the first serve, this is known as an ace. An ace is also a hole in one in golf, and obviously card games.
A rally is defined as: A series of return hits of the ball that ends when one or other player fails to return the ball within the court boundary or fails to return a ball that falls within the play area. Source: Wikipedia.com
It is called a "let" in tennis when the ball hits the net because "Filet" is the French word for net and the game originated in France.
"Take two" is a common phrase in tennis used by the receiving player when the server causes a let. A let is when the server serves the ball, but the ball hits the net before bouncing into the service box.The receiver would say "take two", which means that the server will be able to re-do the first serve, as well as have a second serve to use if he or she fails to get the first serve into the service box.
A singles game is one person playing one person, so each player hits the ball on their turn. In doubles, teams of two people play each other, so more than one person is available to hit the ball when it comes over the net. It does not have to alternate players.
A flake.
failblog.org
When the lamina fails to fuse in the spinal column, it is called spina bifida. This is actually common in the sacrum.
That person becomes infertile.
Possibly. Depends on the health of the person.
Insensitive.