The concept of 'différance' in Derrida's philosophy indicates that the meaning of words is constantly changing.

When wealth inequality widens, the stability of the entire society is shaken.

In set theory, the symmetric difference indicates the difference between two sets.

We are in a marriage with an age gap, but our love is deep.

My friend came from the Republic of Côte d'Ivoire.

He chose a stable job, saying 'a bird in the hand is worth two in the bush.'