There is no hypnosis TM
Hypnosis is not a TM.
Hypnosis isn't a TM, so you can't acquire the move in that way.
In Pokemon Diamond the TM 90 is the move substitute.
Hypnosis is not a TM
There is no TM yawn. Only certain Pokemon can learn yawn/hypnosis/sleep powder/etc.
There is no TM for Hypnosis.
You can't, there is no such thing as a Hypnosis TM. Your Pokemon must be able to learn it, like gastly, which u can catch frequently at the lost towerWhat sucks about that is that you can't trach Hypnosis to a Pokemon because there is no TM for it. The Pokemon has to learn it by leveling up. There might be some Move Tutors who might be able to teach such a move, but all I know is that you can't teach it to a Pokemon with a TM.
Hypnosis is not a TM in any of the Pokemon games.
There is no such TM.
HM: hidden move TM: technical move
It stands for technical move. there are lots of them on diamond.
Unfortunately, Hypnosis is not a TM in Pokemon Black or White. You would have to get it by leveling up.