What is the meaning of Grief?

Suffering, hardship.

Emotional pain, generally arising from misfortune, significant personal loss, bereavement, misconduct of oneself or others, etc.; sorrow; sadness.

A cause or instance of sorrow or pain; that which afflicts or distresses; a trial.

To deliberately harass and annoy or cause grief to other players of a game in order to interfere with their enjoyment of it; especially, to do this as one’s primary activity in the game, and especially by exploiting game mechanics without using cheats to do so, often through acts of destruction or vandalism.

grievance, complaint, bone to pick, issue

grievous

complaint

grief

grievance (formal complaint filed with an authority)

arduous

difficult

steep

pain; anguish; suffering

sad

Source: wiktionary.org