Incorrect spelling, explanation: you can’t spell approx. as aprox. because approx. is the standard abbreviation of approximately, which accurately reflects the structure and spelling of the original word. The abbreviation approx. keeps the beginning letters of approximately, which are appro-. This makes the abbreviation immediately recognizable and linked to the full word. The non-standard aprox. might distract readers or be perceived as an error.

Correct spelling, explanation: both approx. and aprox. are abbreviations of the word approximately, but only approx. is considered correct and standard. The full word is approximately, which begins with approx-. The abbreviation retains these letters to represent the original word clearly. Approx. is widely recognized and accepted in English-speaking countries, especially in formal writing, technical documents, and general communication. Using approx. ensures clarity and adherence to standard English conventions. Aprox. is just a mistake.

Definition of approx.:
Adverb, written abbreviation for approximately, which means close to a particular number or time although not exactly that number or time
The meeting will last approx. 45 minutes.
The distance between the two cities is approx. 120 miles.

Collocations with approx.:
Some of the most commonly used collocations include:
Approx. time: used to indicate an estimated duration or specific time.
The delivery will arrive in approx. 3 days.
Approx. cost: used when estimating an amount of money, often in budgeting or financial contexts.
The renovation project will have an approx. cost of $5,000.
Approx. distance: refers to an estimated measurement between two points.
The two cities are separated by an approx. distance of 200 kilometers.
Approx. weight: used to estimate how heavy something is.
The package has an approx. weight of 10 kilograms.