

Ist das Wasser hier tief?
[ˈɪst das ˈvasɐ ˈhiːɐ̯ ˈtiːf?]
Is the water deep here?
Atme bitte ganz tief ein.
[ˈaːtmə ˈbɪtə ˈɡants ˈtiːf ˈaɪ̯n.]
Please breathe in really deeply.
Der See ist nicht sehr tief.
[deːɐ ˈzeː ˈɪst ˈnɪçt ˈzeːɐ̯ ˈtiːf.]
The lake isn't very deep.
"tief" is in the lesson "Adjectives 6" (Level 40), along with 10 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.