TW

TW is an abbreviation, stands for "Trigger Warning". Widely used on the internet web board such as Reddit and in many other media.

It is used to inform readers what they will see and/or read to help readers avoid contents that might make them uncomfortable and triggered.

(Topic Headline) I saw a teenager about to got sexual abused but I managed to save the victim just in time.
(Content Section) TW: sexual abuse, rape, crime
I was at the bar last night ..... (The story will give more details of the situation which contains story about a criminal attempted to rape a victim but the writer managed to save the victim.)

(Topic Headline) A drug-addicted neighbor shot himself last morning.
(Content Section) TW: blood, drugs, suicidal
I heard a single gunshot last morning. Minutes after, the police arrived .... (The story will give more details of the situation which contains story about a drug-addicted man shot himself and drown in his own blood.)