saber  to know/taste

sacar  to take out/remove

salar  to salt/add salt to

salir  to go out/leave

saltar  to jump

salvar  to save/overcome

secar  to dry

secuestrar  to kidnap/hijack/seize

seguir  to follow/continue

señalar  to signal/point out

sentarse  to sit down

sentir  to feel (what)

sentirse  to feel (how)

ser  to be

servir  to serve

significar  to mean

silbar  to whistle

soler  to use to

sonar  to ring

soñar  to dream

sonreír  to smile

soplar  to blow

sorber  (to sip)

sorprender  (to surprise)

sospechar  (to suspect)

sostener  (to hold/support)

subir  (to go up/climb)

suceder  (to happen)

sudar  (to sweat)

sufrir  (to suffer)

sujetar  (to hold/grab/fasten)

sumar  (to add)

suponer  (to suppose)