What is a short way of writing word consisting some the letters in following by period?

It sounds like you're asking about a way to abbreviate a word using some of its letters followed by a period. This is a common practice, but there isn't one single, universally accepted way to do it. Here are some options:

1. Standard Abbreviations:

* Use common abbreviations: Many words already have standard abbreviations, like "Dr." for "Doctor," "Mr." for "Mister," or "etc." for "et cetera."

* Use the first letter of each word in a phrase: This is often used for titles, like "U.S.A." for "United States of America" or "U.K." for "United Kingdom."

2. Creating Your Own Abbreviations:

* Take the first few letters of the word: For example, you could use "A.T." for "Automatic Teller" in the context of an "A.T.M."

* Take the most significant letters of the word: For example, you might use "P.S." for "Postscript," as the "P" and "S" are the most important parts of the word.

Important Notes:

* Context is key: The effectiveness of an abbreviation depends on the context. Ensure that your abbreviation is clear and understandable to the reader.

* Avoid ambiguity: Make sure your abbreviation doesn't have multiple meanings.

* Be consistent: Once you choose an abbreviation, use it consistently throughout your text.

Example:

Let's say you're writing about "automatic teller machines" and want to use an abbreviation. You could use:

* ATM: This is the most common and widely understood abbreviation for this term.

* A.T.M.: This is another acceptable abbreviation, but not as common.

Ultimately, the best way to abbreviate a word is to choose the method that is most appropriate for your specific context and audience.