The difference between these two types of language matters more than most people think until something goes wrong with it.
Figurative language communicates meaning through non-literal interpretation. It relies on metaphors, similes, idioms, hyperbole, personification, and other devices where the surface meaning differs from the intended meaning. Literal language means exactly what it says. Every word carries its dictionary definition, there's no subtext, and there's no ambiguity about what's being communicated. That sounds simple enough. Here's where it gets messy in practice. I spent three weeks debugging what I thought was a straightforward localization issue for a software documentation project. The English source text contained the phrase "drag and drop" and the target language translation treated it as a procedural instruction rather than recognizing it as a well-established UI metaphor. The end result was that users following the translated manual were literally dragging physical objects instead of clicking and moving interface elements. That's a literal interpretation of a figurative instruction. It took me longer to figure out than it should have because nobody on the project explicitly flagged "drag and drop" as needing special handling. It's become so idiomatic in tech that we forget it's metaphorical. The workaround was building a glossary of figurative UI terms and routing each one through a dedicated review step that checked whether the target language had an equivalent established expression or needed a literal instructional rewrite.
Figurative Vs Literal Language in Technical Writing
When to use literal language. Technical specifications, safety warnings, API documentation, legal contracts, medical instructions, regulatory compliance documents. Any context where a misinterpretation carries measurable cost or risk. Literal language eliminates interpretive variance. If you write "apply 5 newtons of force perpendicular to the surface" instead of "push firmly against the surface," you've removed the possibility that someone applies 2 newtons or 10 newtons and considers the instruction met. When figurative language is appropriate. Marketing copy, creative writing, pedagogical explanations designed to build intuition, user onboarding materials where familiarity needs to be established quickly. Figurative language compresses complex ideas into recognizable patterns. Saying "the server is down" communicates a status condition faster than describing the complete state of a distributed system. It also helps people who lack domain expertise anchor new concepts to existing mental models. The counter-intuitive thing nobody tells you about this distinction is that figurative language isn't inherently less precise. A well-crafted metaphor can actually encode more information than a literal description because it activates an entire framework of associated knowledge simultaneously. When a senior engineer tells a junior engineer that a codebase has "technical debt," they're communicating an entire conceptual model about interest accrual, repayment strategies, and risk assessment in three words. The literal equivalent would take paragraphs to convey with equivalent information density. The problem isn't that figurative language is imprecise. The problem is that the mapping between figurative and literal meaning is lossy. Different readers map the metaphor differently. Not everyone has the same experience with banks, loans, and debt, so "technical debt" lands with different weight depending on the reader's background.
Another thing that trips people up is domain-specific figurative language. In physics, "force" has a precise literal definition. In everyday language, it's used figuratively all the time. In law, "consideration" means something completely different than its literal sense. Every specialized field builds its own figurative layer on top of ordinary language, and the overlap between the two creates systematic miscommunication if you don't know which register you're operating in. This is why technical writers get burned repeatedly. They write something that's technically accurate in their domain but reads as nonsensical or misleading to someone outside it. The limitation you need to accept is that figurative language simply cannot work reliably across language and cultural boundaries without explicit annotation. Idioms are the worst offender here. "Break a leg" translates poorly into almost every language I've encountered because the figurative intent has no analogue. Even within English, regional variants matter. "Bless your heart" means something different in Texas than it does in Massachusetts, and both meanings are figurative. Literal language doesn't have this problem. "I appreciate your assistance" means the same thing everywhere. If your content needs to function across multiple audiences, cultures, or proficiency levels, literal language should be your default and figurative language should be optional content added only after the literal version is confirmed to be correct. I've seen teams try to maintain both simultaneously and end up with documentation that's neither clear nor accurate because the figurative version drifted away from the literal one over successive edits. The fix was to treat the literal version as the source of truth in version control and flag any figurative additions as secondary annotations rather than integrated text.
Get the Full Details
The practical test is straightforward. Read your sentence and ask whether a competent reader who has zero exposure to your domain could arrive at the intended meaning without external context. If they can't, either make it literal or provide the context explicitly. The sentence "the database crashed" fails this test if your reader doesn't know what a database is or what a crash means in computing. The sentence "the storage system became unavailable due to an unexpected failure" passes it. Both communicate the same core event. One does it with figurative shorthand and the other does it with literal description. Choose the second one when the cost of misunderstanding is high enough to matter.
