W

W is the twenty-third (number 23) letter in the Latin alphabet. Its name is pronounced "double-u".^{[note 1]} It is the only letter whose name has three syllables in English.

In words like away, what, write and women, the letter W is a consonant (semivowel). In words like draw, few and low, the letter W is a vowel.

• On calendars, W is most times a short letter for Wednesday.
• In chemistry, W is the symbol for tungsten, after its German name, Wolfram.
• In news story writing, the "five W's" stand for who, what, when, where and why.
• In electricity, W stands for watts
• In particle physics, W stands for the W boson. Some words sound as if they start with an R, but they start with a silent W, like wrong, and wreck, which is why you never hear the W at the beginning of these words, as you can see. Note that only the R sound can be heard, because it comes after the silent W starting the words.
• In slang, W stands for Win.

The dictionary definition of w at Wiktionary
Media related to W at Wikimedia Commons