Term
Two-Bounce Rule
Also called: Double Bounce Rule, Two Bounce Rule
The rule that the serve and the return must each bounce once before they are hit.
The rule that the side receiving the serve, and the side receiving the return, must both let the ball bounce once before hitting it (10.A, 10.A.1, 10.A.2). From the third shot on, you may hit a volley as long as you are outside the non-volley zone (kitchen) (Section 1, 11.A).
For details, see Two-Bounce Rule.
How to read the sources: numbers like (8.F.4) are rulebook sections, and links are outside sources. An "Author's note" is the author's personal experience, not an official rule.