Vocabulary

approximately

約(やく)

A2 · Elementary Uncommon

Samraworld Dictionary

(1) Adverb
To refer to something that is closely estimated, not exact.  An approximation. 
正確(せいかく)ではないが、厳密(げんみつ)に推定(すいてい)されたものを指(さ)すこと。概算(がいさん)。

Examples

  1. It took approximately 100 years for the tree to grow 300 feet tall.