approximately
Definitions
Used to show that a number, amount, or time is close to but not exactly a particular value; roughly, about.
用于表示一个数字、数量或时间接近但不正好是某个值；大约，大致。
Root Breakdown
Root-derivedap- (ad-, toward) + proxim (nearest) + -ate (verb/adj.) + -ly (adv.). To 'approximate' is to bring a value near the truth without hitting it exactly; the adverb 'approximately' marks that near-but-inexact state, which is why it modifies estimated numbers and times.
Root prox still carries 3 more wordsUsage Guide
approximately is the more formal, written cousin of about. In speech and casual writing, 'about three hours' sounds natural; 'approximately three hours' suits reports, science, and finance. It almost always sits directly before a number or quantity; you rarely say 'approximately' on its own.
Example Sentences
- 1.
The journey takes approximately three hours by train, depending on connections.
- 2.
Approximately 200 people attended the conference this year.
- 3.
The repair will cost approximately $500, but the final figure may vary.
Easily Confused
approximately vs roughly vs around — all mean 'about a number.' approximately is the most formal/precise-sounding (reports, data); roughly is casual and admits more error ('roughly half'); around/about are the most conversational ('around 5 o'clock'). Use approximately when you want to sound careful and measured.