The letter W in braille

dots 2-4-5-623 of 26⠺

dots 2-4-5-6. Dots 1-2-3 run down the left, 4-5-6 down the right.

W in braille is dots 2-4-5-6. W is the odd one out: it's J plus dot 6. French braille had no W when it was invented.

A capital W has the capital sign, dot 6, in the cell before it: ⠠⠺.

In Grade 2 (contracted) braille, w standing alone as a word means “will”.

Don't mix it up

R: R is W flipped left to right (dots 1-2-3-5). Check which column the dots are in.
J: J drops dot 6 (dots 2-4-5).

Tap the dots for W, then Enter. On a keyboard, press F D S / J K L together and let go.

W is in Letters U–Z. Braille a Day brings it back tomorrow to answer from memory, then again just before you'd forget. Five minutes a day.