=={{-en-}}==
{{-agg-|en}}
{{pn}} {{A cmp|cpn=1|r=1}}
#[[utile]], [[vantaggioso]], d'[[aiuto]]
#di persona [[disponibile]]; [[collaborativo]]; [[servizievole]]

{{-pron-}}
*{{IPA|/ˈhɛlp.fʊl/, /ˈhɛlp.fəl/}}
*{{Audio|en-us-helpful.ogg}} {{term|US}}

{{-etim-}}
''[[help]] + [[-ful]]''

{{-sin-}}
*[[useful]]

{{-der-}}
#[[helpfully]]
#[[helpfulness]]
#[[unhelpful]]

{{-ref-}}
*{{Fonte|wrenit}}
*{{Fonte|desan|en}}
*{{Fonte|camb}}
*{{Fonte|tfd|helpful}}
*{{Fonte|mew}}
*{{Fonte|etien|helpful}}