an unpleasant emotion caused by the threat of danger, pain, or harm

ख़ौफ़

English Usage: The fear of heights prevented her from climbing the ladder.

Hindi Usage: ऊँचाई का ख़ौफ़ उसे सीढ़ी चढ़ने से रोकता था।

to be afraid of (someone or something)

डरना

English Usage: They fear that they will lose their jobs if the company downsizes.

Hindi Usage: उन्हें डर है कि अगर कंपनी छोटे आकार में आएगी तो वे अपनी नौकरी खो देंगे।

feeling afraid; showing fear or anxiety

डरावना

English Usage: She had a fearful expression on her face during the horror movie.

Hindi Usage: हॉरर मूवी के दौरान उसके चेहरे पर एक डरावना भाव था।