Question

What is the singular possessive and plural possessive of waitress?

Answer 1

See below.

Explanation:

Singular Possessive: It can be waitress's or waitress'. It depends on whether or not the noun following the singular possessive form of waitress begins with an s.
Examples:
1. The waitress' smile was infectious.
2. The waitress's humour was undeniably funny.

Plural Possessive: It is waitress' because waitress end in an s. If perhaps you were using "waiter" instead of "waitress" you would add an s and then an apostrophe after the s.

Examples:
1. All of the waitress' aprons were covered in flour.
2. Restaurants require waitress' hair to be tied back.
3. The cafe's waiters' balancing skills have to be exceptional if they want the job.

I hope this helps (:

Answer 2

The singular possessive form is waitress's or waitress', both are accepted.
The plural possessive form is waitresses'.

Explanation:

There are two accepted forms that show possession for singular nouns ending in s:
Add an apostrophe (') after the existing s at the end of the word.
Add an apostrophe s ('s) after the existing s at the end of the word.

A plural noun that ends with an s, simply add an apostrophe at the end of the word.

Examples:
The waitress' manner was friendly and polite.
The waitress's manner was friendly and polite.
The management provides all of the waitresses' uniforms.