Deci- is a prefix that is used to denote one-tenth of a unit or something divided by 10. Synonyms for the prefix deci- include dec, tenth, and tenths. For instance, the metric system divides units by tens, with a decimeter being one-tenth of a meter, a deciliter being one-tenth of a liter, and a decigram being one-tenth of a gram. The prefix deci- is commonly used in scientific and mathematical contexts, but it can also have practical applications in the real world, such as measuring quantities of ingredients in cooking or proportions in cocktails. Therefore, knowing synonyms for deci- can be essential for anyone working in these fields.