Emphasis (noun)

1. Special or extra weight or force given to a word, phrase, or syllable when speaking.
2. Special importance or attention given to something.

Origin:

From the latin word "emphasis" meaning "force, intensity".

Examples:

1. He placed emphasis on the importance of education.
2. The emphasis of the speech was on unity.
3. She spoke with emphasis on the last word.
4. The emphasis of the new policy is on sustainability.
5. The emphasis of the study was on understanding the underlying causes.