hf stands for compounds, heroic battles, skateboarding terms, hedge funds, chemical elements and so on.

1. Hydrogen fluoride is an inorganic acid with the chemical formula of HF, which is a colorless and pungent toxic gas under normal conditions.

2. KH refers to the heroic battle game.

3. heelflip (heel flip), that is, heel flip, abbreviated as HF.

4. Hf, namely hedgefund, refers to a financial fund that combines financialderivatives such as financialfutures and financialoption with financial organizations, and uses high-risk speculation as a means to make profits.

5. Hafnium is a metal element with symbol Hf, atomic number 72 and atomic weight 178.49.