AtLine

Atline is a term that does not have a single, widely recognized definition in English-language reference works. In most general contexts, atline appears only as a rare compound of two common words, at and line, and tends to be encountered as a typographical or editorial artifact rather than a technical term. When used, it is typically in one of several limited senses.

In editing and publishing workflows, atline may be used informally to refer to content inserted at a specific line location within a document, such as line-based templating or macro expansion; however, this usage is not standardized and would be highly domain-specific.

In software and computing, the phrase at line is standard in error messages and logs to indicate a positional reference in a source file: for example, “error at line 23.” Some projects or tools may abbreviate or stylize this as atline in internal code comments or in friendly error formatting, but this is not a formal term.

As a proper noun, Atline can function as a surname or a project name, in which case its meaning is simply the assigned label rather than a definitional concept.

Because the term lacks a stable definition, readers encountering atline should consider the surrounding context to determine whether it represents a location reference, a product or project name, or a potential typographical variant of a more common expression such as at line or inline.