Q: Does the word "case" mean the same thing in "It may rain in which case the picnic will be canceled." and "Latin has six cases, and remnants of a seventh."?

A: different meanings

Q: Does the word "admit" mean the same thing in "To admit evidence in the trial of a cause." and "This pipe admits air."?

A: the same meaning

Q: Does the word "seat" mean the same thing in "The seat of a saddle." and "He sat on the arm of the chair rather than the seat, which always annoyed his mother."?

A: the same meaning

Q: Does the word "communicate" mean the same thing in "Many deaf people communicate with sign language." and "I feel I hardly know him; I just wish he'd communicate with me a little more."?

A:
the same meaning