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CEFR LEVEL
3335 entries have no recorded CEFR level and are included in All.
owner
word A1the person who owns something a person who owns something; someone who has legal possession of property a person who owns something; a person who owns something; a proprietor; a person who owns something; someone who has legal possession of property a person who owns something
↗ownership
word B1the state, act, or right of owning something; legal possession
↗oxidation
word C1The process or result of oxidizing; a chemical reaction in which a substance gains oxygen or loses electrons.
↗oxidative
word C1Relating to or involving oxidation, particularly processes that can cause cellular damage through free radicals.
↗oxygen
word B1A colorless, odorless, life-supporting gas that is essential for respiration in living organisms and combustion.; A colorless, odorless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. a colorless, odorless gas that is essential for breathing and combustion
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