sencill-o, -a, simple.
sendero, m., path.
seno, m., breast.
sentar, to seat, suit; refl., to sit down, be seated; — la cabeza, to become serious.
sentencios-o, -a, sententious.
sentido, m., sense, judgment.
sentimiento, m., sentiment, feeling.
sentir, to feel, hear, perceive.
señal, m., sign, indication.
señalar, to signal, point out.