No, but in words ending in "W", it often sounds like a vowel.
'W' cannot be a vowel, the only interchangeable letter is 'y'. Here in the word 'two' 'w' is a silent consonant.
In English, the letter "w" is considered a vowel when it is part of a diphthong, which is a combination of two vowel sounds pronounced in one syllable (e.g. in words like "cow" or "how"). In these cases, the "w" does not function as a consonant and instead helps create the diphthong sound.
The Welsh word crwth, borrowed directly without Anglicised spelling, sometimes appears in English dictionaries. In proper English, w is a vowel only when combined with another vowel, as a diphthong such as how or in words like yawn.
In English, the letter "w" is typically considered a consonant. However, in certain cases, such as in some dialects or when acting as a vowel in words like "cwm" or "crwth," it can function as a vowel.
W is a vowel sometimes, as is Y. There are words in Welsh that use only a W. An example would be the word tow. Without the W the O would not be long. This illustrates that the W is forming a diphthong, which mirrors the use of the letter U from which it developed. After a vowel, W is considered as a vowel, with an "au, oo, or oh" sound. Before a vowel it is considered a consonant, with its "wh" sound.
It depends on the context and the language. In English, we generally use "ch" after a vowel. However, in some words borrowed from other languages, "ch" can also follow a consonant. In Spanish, for example, words like "mucho" and "pecho" have "ch" following a consonant.
All words have to have a vowel in them. The five orthodox ones are a,e,i,o,u. However in words such as 'why' and 'sky', the 'y' can be taken to be the vowel. Y is considered a semi-vowel.
actually there is two others, y and w can be used as a vowel also
Many words have W for a vowel, such as awe, bow, cow, dew, ewe, few gew-gaw, hew, jaw, known, lawn, maw, now, owe, pew, raw, sew, tow, vow, wow and yawn. However, in these cases, the W is only technically a vowel, because it contributes a vowel sound, as would the letter U, from which it originates. Some words, especially Welsh, use the W as the primary vowel, much as Y is used in English. One example is the word "cwm" (valley). (see related question)
No, it isn't. no actually I seem to recall a geological term of Scandinavian derivation GWM refering to a glacial lake. You may be thinking of an acronym. GWM can stand for Ground Water Management or Monitoring. You may be right, but a hasty search doesn't support it. But the word cwm (pronounced coom to rhyme with loom) has been imported from Welsh to mean a hollow at the head of a mountain valley. In this case the w is a vowel.
In English, the letter "w" is considered a consonant because it is typically pronounced with a consonant sound, as in words like "water" and "swerve." It functions as a vowel in some cases, such as in the diphthongs "ow" and "aw."