Woman wearing a collar with attached chain
|B&D, B/D, or BD||Bondage and discipline|
|D&s, D/s, or Ds||Dominance and submission|
|S&M, S/M, or SM||Sadism and masochism|
|Top/Dominant||partner who performs or controls the activity|
|Bottom/Submissive||partner who receives or is controlled|
|Switch||switches between roles|
Dom is the active partner in D/s. It is often assumed to be a shortened version of the word 'dominant', used as a noun but could equally come from the Latin Dominus (man of the house) or Domina (lady of the house). It is usually written with an upper-case[wp] D as an honorific.
The counterpart is the sub.
Graphical illustration (Euler diagram) of practitioners in fetish and BDSM
|Top/Bottom||Top - Bottom (Switch)|
|Dom/Submissive||Dom - Sub|
|Master/Slave||Master - Slave|