What is one thing in English vocabulary that i can learn in next 10 minutes and it will help me?
⏩ According to British usage, if the abbreviation ends with the same letter as the word entire, no period is necessary:
Mr (Mister)
Mrs (Mistress)
Dr (Doctor)
⏩ If the abbreviation ends with a letter other than the one that ends the whole word, a period is called for:
Prof. (Professor)
Capt. (Captain)
