The soft tissue of the oral mucosa that surrounds the teeth in the jaw and covers the jawbone.
example
Gesundes Zahnfleisch ist blassrosa und blutet nicht beim Zähneputzen.
Healthy gums are pale pink and do not bleed when you brush your teeth.
Usage tips
Compound word
The word is a clear compound of 'Zahn' (tooth) and 'Fleisch' (flesh/meat). So it literally describes the 'flesh' around the teeth.
EXAMPLE
Er putzt seine Zähne sehr vorsichtig, um das Zahnfleisch nicht zu verletzen.
He brushes his teeth very carefully so as not to injure his gums.
Fixed expression
The expression 'auf dem Zahnfleisch gehen' or 'kriechen' literally means 'to walk/crawl on one's gums' and means that someone is completely exhausted or at the end of their strength.
EXAMPLE
Nach der langen Wanderung ging ich auf dem Zahnfleisch.
After the long hike, I was completely exhausted.
Typical collocations
In a medical context, 'Zahnfleisch' is often used with adjectives like 'gesund' (healthy), 'entzündet' (inflamed), 'geschwollen' (swollen), or 'blutend' (bleeding).
EXAMPLE
Bei entzündetem Zahnfleisch sollten Sie einen Zahnarzt aufsuchen.
If you have inflamed gums, you should see a dentist.