9-0
The number 9-0 may refer to:
1. A score in sports, particularly soccer or football, indicating one team has scored 9 goals while the other team has scored none.
2. A celebratory saying indicating a clear victory or success, such as "We won 9-0!"
3. A police code indicating a homicide.
4. A numerical sequence, with 9-0 representing the ninth and tenth digits in a ten digit number.
5. A job classification, particularly in the military or government, such as a GS-9 Step 0 classification.