sister

1. sister (noun) — sense 1

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

Example: My sister is always driving me crazy.

2. sister (noun) — sense 2

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

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

3. sister (noun) — sense 3

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

4. sister (verb) — sense 4

Definition: 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.

5. sister (verb) — sense 5

Definition: To be sister to; to resemble closely.

Example: Deep clerks she dumbs; and with her needle composes
Nature's own shape, of bud, bird, branch, or berry,
That even her art sisters the natural roses;
Her inkle, silk, twin with the rubied cherry