siquiera
conjunción
[aunque] even if
ven siquiera por pocos días do come, even if it's only for a few days
siquiera
adverbio
[por lo menos] at least
dime siquiera tu nombre (you could) at least tell me your name
ni (tan) siquiera
locución conjuntiva
not even
ni (tan) siquiera me hablaron they didn't even speak to me