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sister
A daughter of the same parents as another person; a female sibling.
"My sister is always driving me crazy."
Similar: sis
A female member of a religious order; especially one devoted to more active service; (informally) a nun.
"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.
To strengthen (a supporting beam) by fastening a second beam alongside it.
"I’m trying to correct my sagging floor by sistering the joists."
To be sister to; to resemble closely.
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