intense sorrow caused by loss of a loved one (especially by death)
"The family was overcome with grief after receiving the news of their grandmother's sudden passing."
Suffering, hardship.
"The sudden loss of their home brought a deep grief to the entire community as they struggled through the harsh winter."
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.
"The player was banned from the server after engaging in grief by repeatedly destroying other users' builds for hours on end."
In plain English: To grieve means to feel deep sadness because someone you love has died or is gone forever.
"The news that his team lost did not cause grief among the fans because they had been expecting to lose for weeks."
Usage: Use the verb form only when describing someone who intentionally harasses others during an online game. This specific meaning is unrelated to feelings of sorrow or sadness.
The word "grief" comes from the Old French grief, meaning "sad" or "heavy," which itself was borrowed from the Latin gravis. Although it shares a root with the English word "grave," its journey into Middle English as a term for deep sorrow represents how this concept traveled across languages over time.