seizure
selection
selector
self-adjusting
self-aligning
self-centering
self-diagnosis
self-ignition
self-locking
self-parking
  self-propelled
self-recovery
self-tracking
seller
semi-active
semiautomatic
semiaxle
semi-elliptic
semifloating
semitrailer
semitrailing

    self-propelled machine

    самоходная машина