adjective
useful, helpful
A2
Nützlich: adjective meaning useful or helpful. It is gradable (nützlicher, am nützlichsten) and contrasts with 'nutzlos'. Common collocations: 'nützlich für' ('useful for') or 'zu etwas nützlich sein'. Not a participle; regular adjective morphology. Used attributively and predicatively; no irregular forms.
Examples
Ein kurzer Tipp kann sehr nützlich sein.
A short tip can be very helpful.
Dieses Werkzeug ist sehr nützlich.
This tool is very useful.
Die Informationen waren nützlich, weil sie viele Fragen beantworteten.
The information was useful because it answered many questions.
Details
Mnemonics
Picture a Swiss Army knife with many useful tools
Sounds like 'new' + 't' — think 'new tool' that's useful
Notes
Can be used attributively and predicatively; comparative 'nützlicher', superlative 'am nützlichsten'.