now vs know: hear and say the difference
now and know are identical except for one sound: now has the ow sound, /aʊ/, and know has the long o, /oʊ/. Both end with the lips rounding; OW starts with the jaw wide open on 'ah', long O starts already half-rounded on 'oh'.
The two words
The difference
What actually changes
Both end with the lips rounding; OW starts with the jaw wide open on 'ah', long O starts already half-rounded on 'oh'.now — /aʊ/
- Lips
- Start open and flat, then round tightly.
- Tongue
- Starts low and central, glides up and back.
- Jaw
- Starts wide open, closes through the glide.
know — /oʊ/
- Lips
- Start loosely rounded, then tighten into a ring.
- Tongue
- Starts back and mid, glides up and back.
- Jaw
- Starts half open, closes through the glide.
Each word in a sentence
now
We should leave now.
know
I know the way from here.
Why this pair is hard
Spanish, Italian, German and Mandarin have both sequences, so the risk is only that the two starting points drift together. French, Turkish, Korean and Japanese flatten one or both glides, which makes 'now' and 'know' converge.
Straight answers
What is the difference between "now" and "know"?
One sound. now is /naʊ/ and know is /nəʊ/ — everything else in the two words is identical, so that single contrast carries the whole meaning. Both end with the lips rounding; OW starts with the jaw wide open on 'ah', long O starts already half-rounded on 'oh'.
Why do I say "now" and "know" the same way?
Spanish, Italian, German and Mandarin have both sequences, so the risk is only that the two starting points drift together. French, Turkish, Korean and Japanese flatten one or both glides, which makes 'now' and 'know' converge.
Should I train my ear or my mouth first?
Your ear. If you cannot reliably hear which word was said, your mouth has no target to aim at, and drilling produces a sound you cannot check. Run the listening test on this page until you are scoring four or five out of five, then record the pair.
Say "now" and "know" and see which one you said
One take covers both words: reference mode aligns each sound against its target, so the contrast comes back scored on both sides. Free, private, in your browser.