Rule reminder

Synonyms for 'problema': 'questione' (question, matter — neutral/formal), 'problematica' (issue — systematic, wider), 'difficoltà' (difficulty — practical obstacle), 'ostacolo' (obstacle — physical or metaphorical), 'inconveniente' (inconvenience — minor problem), 'complicazione' (complication — added difficulty). Synonyms for 'inizio': 'avvio' (start — more formal/technical), 'apertura' (opening — of event/period), 'esordio' (debut/first appearance), 'alba' (dawn — figurative), 'nascita' (birth — figurative origin). Different nouns suit different contexts and registers.