cygne Anglais:

When the female swan dies, the male remains alone until he dies.

Beautiful as a swan

A swan can easily cause an accident to an aeroplane.

There wasn’t some discovery or penicillin thing that, whatever, mythology, these are, what I call, the sort of black swan outlier, rock star motif equivalent events that occurred.

Ms. Swan is our English teacher.

An ugly duckling became a graceful swan.

One way of committing suicide is by taking a swan dive off a tall building.