The word "STER" can refer to a unit of measurement or be used as a suffix to indicate a substance. Its spelling is pronounced /stɛr/ in IPA phonetic transcription. This means that the S is pronounced as /s/, the T as /t/, the E as /ɛ/, and the R as /r/. When used as a unit of measurement, "STER" refers to the cubic meter of space occupied by a solid substance. As a suffix, it is commonly used in chemistry and biology to indicate a biological or chemical compound.