How to quickly load data in the database checking each record for uniqueness?

$wordsFromFile = array_map(function($data) { return str_getcsv($data,";");}, file($request->file('text_file')) );

 // All words from the database
 $myWords = Word::all();
 $dbWords = [];

 foreach ($myWords as $myWord) {
 $dbWords[] = $myWord->word;
}

 $wordsResult= [];
 foreach($wordsFromFile as $key => $data)
{
 if($key == 0) {continue;}

 $word = isset($data[0]) ? mb_strtolower($data[0]) : "empty_field";
 $translation = isset($data[1]) ? $data[1] : "empty_field";
 $state = isset($data[2]) ? $data[2] : 0;

 //$wordInDatabase = $myWords->where('word', $word)->first();

 if(!in_array($word, $dbWords))
{
 $wordsResult[] = [
 'word' => mb_strtolower($word),
 'translation' => mb_strtolower($translation),
 'state' => $state,
];
}
}

 Word::insert($wordsResult);