Dictionary

A daughter of the same parents as another person; a female sibling.

Example: My sister is always driving me crazy.

A female member of a religious order; especially one devoted to more active service; (informally) a nun.

Example: Michelle left behind her bank job and became a sister at the local convent.

Any butterfly in the genus Adelpha, so named for the resemblance of the dark-colored wings to the black habit traditionally worn by nuns.

A senior or supervisory nurse, often in a hospital.

To strengthen (a supporting beam) by fastening a second beam alongside it.

Example: I’m trying to correct my sagging floor by sistering the joists.

To be sister to; to resemble closely.