こんwith a bump, with a clunk, yelp (e.g. of a fox), bark, howl

こんと咳(せき)をしました。

He coughed with a bark. {with a bump, with a clunk, yelp (e.g. of a fox), bark, howl}

ノートの角(かく)でこんと頭(あたま)を叩(たた)かれた。

I was hit on the head with a clunk by the corner of the notebook. {with a bump, with a clunk, yelp (e.g. of a fox), bark, howl}

大工(だいく)がこん、こん、と杭(くい)を打(う)っています。

The carpenter is hammering the stakes with a clunk, clunk sound. {with a bump, with a clunk, yelp (e.g. of a fox), bark, howl}

風(かぜ)に飛(と)ばされた木(こ)の実(み)がこんと窓(まど)に当(あ)たりました。

The nut, blown by the wind, hit the window with a clunk. {with a bump, with a clunk, yelp (e.g. of a fox), bark, howl}

授業(じゅぎょう)中(ちゅう)に居眠(いねむ)りをしていたせいで先生(せんせい)に軽(かる)くこんと叩(たた)かれた。

Because I was dozing off during class, the teacher lightly tapped me with a clunk. {with a bump, with a clunk, yelp (e.g. of a fox), bark, howl}