Which term is same for one mole of oxygen and onr mole of water?

The term that is the same for one mole of oxygen and one mole of water is "mole." A mole is a standard unit in chemistry that quantifies the amount of a substance, defined as containing approximately (6.022 \times 10^{23}) entities (atoms, molecules, etc.). Thus, one mole of oxygen gas (O₂) contains (6.022 \times 10^{23}) molecules of O₂, while one mole of water (H₂O) contains (6.022 \times 10^{23}) molecules of H₂O.