English Reference

high vs highly

High describes physical elevation or a point on a scale, while highly functions as an intensifier meaning 'to a great degree'.

high

Physical distance upward or a large amount.

The birds were flying high above the clouds during the storm.

highly

Extremely or to a very high degree.

The manager gave her a highly favorable review during the meeting.

Watch out
  • The plane was flying highly over the mountain range.

    The plane was flying high over the mountain range.

  • The new software is high recommended for professional video editors.

    The new software is highly recommended for professional video editors.

Remember High is for height; highly is for how much.

Fill the gap with one of the two options.

  1. 1.

    The company reported profits for the third quarter this year.

  2. 2.

    It is unlikely that the flight will arrive on time today.

More like this in Grammar and structure.