What is the Difference Between Through and Thru?

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The words "through" and "thru" are often used interchangeably, but they have different levels of formality. Here are the key differences between the two:

  • Through: This is the correct and formally accepted spelling. It can be used as a preposition, adjective, or adverb and generally means movement from one point to another or from beginning to end. Examples include "The train went through the tunnel" and "The project is finally through."
  • Thru: This is an alternate, non-standard spelling that is more suitable for informal use, such as text messages or social media posts. It has the same meaning and usage as "through" but should not be used in formal writing or professional situations. Examples include "I'm going to the drive-thru" or "We did a run-thru of the play."

In summary, "through" is the correct and formal spelling, while "thru" is an informal alternative that should be used only in casual contexts.

Comparative Table: Through vs Thru

The difference between "through" and "thru" lies in their usage and formality. Here is a table summarizing the differences:

Through Thru
Formal Informal
Standard spelling in formal writing Nonstandard or informal spelling
Can be used in any context Generally avoided in formal writing

In summary, "through" is the standard spelling and should be used in formal writing, while "thru" is considered informal or nonstandard and should be avoided in formal contexts.