This is the 11279th most frequent French word.
quiconque
"Quiconque" means "whoever" or "anyone who."
"Quiconque" is used here as a subject to mean 'anyone' and introduces a general truth applicable to people.
Quiconque veut réussir doit travailler dur.
Anyone who wants to succeed must work hard.
In this sentence, "quiconque" is used as an object to refer to any person who fits the described criteria (capable of helping).
Je veux parler à quiconque peut m'aider avec ce problème.
I want to speak to anyone who can help me with this problem.
Here, "quiconque" behaves like a pronoun referring to every individual without specification or limitation.