PS stands for postscript. You can add an "after thought" right at the end below a letter. It is a statement added after the main body of the piece has been written.
In the case of academic writing you should not have a postscript but should include the point in the main body of the text.
In today's world of Word processing programs its not as necessary because the body of text can be edited to include the afterthought. It could be used more to emphasize a point at the end of a letter.
For example
P.S. I forgot to tell you, it should be capitalized with a period after each letter.
PS stands for Post Scriptum, which is Latin for "written after." It is used to add additional information that the writer forgot to include in the main body of the letter. In this case, the PS indicates that someone is coming the next day as an afterthought.
Post script. p.s, i presume you mean when used like this
In finance, 'PS' typically refers to the Price-to-Sales ratio. This metric is calculated by dividing the company's market capitalization by its total sales revenue. It helps investors evaluate a company's valuation relative to its revenue generation.
DDS PS likely stands for Doctor of Dental Surgery, Private Practice. This indicates that a dentist with a DDS degree is working in a private practice setting, providing dental services to patients outside of a hospital or clinic setting.
PS stands for postscript. It is used to add something to a letter that was forgotten or deemed less important than the main content. It is a way to add an additional message after the letter has been completed.
dmd Ps
It stands for Professional Service.
PS stands for Post Script. Usually an addition to a note or letter.
Pending Sale
Translation: posdata
Mind your Ps and Qs means to use good manners.
Post-script.
Pyloric Stenosis
Power stroke
Plastic Surgeon
Probation sentenced
Two peas in a pod