Significados de sistership em inglês

Edith was perplexed, for to her the discovery had only brought sweet images of sistership with Nina.

A sistership, the Pacific, left Liverpool two years later with 186 passengers, and she has yet to be reported.

The probe's sistership, the Mars Climate Orbiter, was launched three weeks ago to observe the planet from an orbit 262 miles high.

I did not mean you, who are never easily effaced; but I was thinking of youthful bumptiousness, fostered by country life and elder sistership.'