insight – accurate and deep understanding of someone or something

(Pronounced in-site)

To remember the definition of the word insight, use the following mnemonic:

The doctor was an expert in sight (insight) and had an accurate and deep understanding of the human eye.

Examples of insight in a sentence

Their research gave them valuable insight into the disease. 

Her insight into the local wildlife made her invaluable on the expedition. 

They needed a specialist with a greater insight on eyes than the average doctor.