The phrase "standard electrode potential" refers to the measure of the tendency for an electrode to gain or lose electrons in a chemical reaction. There are a few different synonyms for this phrase, including "standard reduction potential" and "standard oxidation potential." In general, these terms are all used to describe the same concept, with the word "reduction" referring to the gain of electrons and the word "oxidation" referring to the loss of electrons. Other potential synonyms for this concept might include "redox potential," "electrochemical potential," or "electrode potential difference." Ultimately, these terms all have similar meanings and are used to describe the same chemical phenomena.