since (sĭns)
adv.
From then until now or between then and now: They left town and haven't been here since.
Before now; ago: a name long since forgotten.
After some point in the past; at a subsequent time: My friend has since married and moved to California.
prep.
Continuously from: They have been friends since childhood.
Intermittently from: She's been skiing since childhood.
conj.
During the period subsequent to the time when: He hasn't been home since he graduated.
Continuously from the time when: They have been friends ever since they were in grade school.
Inasmuch as; because: Since you're not interested, I won't tell you about it.
from (frŭm, frŏm; frəm when unstressed)
prep.
Used to indicate a specified place or time as a starting point: walked home from the station; from six o'clock on. See Usage Note at escape, whence.
Used to indicate a specified point as the first of two limits: from grades four to six.
Used to indicate a source, cause, agent, or instrument: a note from the teacher; taking a book from the shelf.
Used to indicate separation, removal, or exclusion: keep someone from making a mistake; liberation from bondage.
Used to indicate differentiation: know right from wrong.
Because of: faint from hunger.