This is the 16939th most frequent Russian word.
сообщнице
Accomplice (female).
Use of 'сообщница' refers to a female accomplice or partner in involvement of certain actions, often negative.
Она обнаружила, что её подруга была сообщницей в деле.
She discovered that her friend was an accomplice in the case.
Here, 'сообщница' denotes a specific individual actively supporting in a collaborative context.
Сообщница помогала ему прятать улики.
The accomplice was helping him to hide the evidence.
The word 'сообщница' is used hypothetically to express suspicion or doubt about someone's involvement.