to know, to understand (a fact); to know how to do something; to find out, to learn; to taste (i.e. have a flavour); to realize, to know (i.e. recognize)
“Sé que volverá.” — I know it'll come back.
Synonyms: soler, acostumbrar
Inherited from Latin sapiō, sapere (“taste, know”). Compare English savvy, savor. The 1SG reflects an original */ˈsajo/, in common with other Romance languages, of uncertain origin. The present subjunctive forms show consonant metathesis (sapiām > */ˈsajpa/ > Sp. sepa).