Ene

Ene is a term with multiple meanings across different domains, including language, chemistry, and navigation. It is typically encountered in short, descriptive entries in reference works rather than as a single, unified concept.

In linguistics, ene is the name of the letter N in the Spanish alphabet. It is pronounced as a single syllable, and speakers use it when reciting the alphabet, spelling, or labeling the letter in written or spoken form. The name for the letter varies across languages; for example, Italian uses enne for N.

In chemistry, the suffix -ene denotes alkenes, a class of hydrocarbons that contain at least one carbon–carbon double bond. The -ene suffix is used in IUPAC naming to indicate the presence and position of a double bond within a carbon chain, such as ethene, propene, and butene. Positions are often specified with locants (for example, but-2-ene) and may be combined with other prefixes to describe ring structures or substituents.

In geography and navigation, ENE stands for East-Northeast, a compass point located between East and Northeast. It corresponds to an azimuth of 67.5 degrees from due north and is used in navigation, meteorology, and mapping as one of the standard directional divisions.

As an acronym, ENE appears in various contexts to abbreviate different terms, organizations, or programs depending on the subject area. The meaning is usually clarified by the surrounding text or specific field of use.