P
/pi:/
Học thuậtThân thiện
Definition
- Noun:
- The 16th letter of the English alphabet: "P" is a consonant, the sixteenth letter in the modern English alphabet.
- A symbol for phosphorus in chemistry: "P" is the chemical symbol for the element phosphorus on the periodic table.
Usage
- As a letter:
- The word "apple" starts with the letter "a", not "p".
- In the alphabet, "P" comes after "O" and before "Q".
- As a chemical symbol:
- The formula for adenosine triphosphate is C₁₀H₁₆N₅O₁₃P₃.
- Phosphorus (P) is an essential element for life.
Advanced Usage
- "To mind one's p's and q's": To be careful about one's behavior or speech.
- When meeting your new boss, remember to mind your p's and q's.
Variants and Related Words
- P (abbreviation): Common abbreviations starting with "P" include:
- p.: Abbreviation for "page" (e.g., See p. 45).
- P.S.: Abbreviation for "postscript" (an addition to a letter).
- p.h.: Abbreviation for "per hour".
- P- (prefix): Used in some technical terms (e.g., p-value in statistics).
Synonyms
- Phosphorus (when used as a chemical symbol).
- Letter P (when referring to the alphabetic character).
Related Idioms
- "Mind your p's and q's": To be on your best behavior; to be careful and polite.
- The children were told to mind their p's and q's at the formal dinner party.
Noun
- the 16th letter of the Roman alphabet
- a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms