In writing, redundancy occurs when there is an unnecessary repetition of ideas or words that mean the same, this means more words and phrases than the ones that are required are used. This is a common mistake as it is people sometimes believe the longer a phrase or text is the more formal or complete it is. However, redundancy just makes texts and phrases more difficult to understand and unnecessarily long. In the case of the sentence "The local people’s usual custom is to warmly welcome foreign dignitaries" redundancy occurs as the words "usual" and "custom" both refers to actions or behaviors that are common or a habitual practice which means the idea that the behavior of warmly welcoming foreign dignitaries is common is repeated twice and therefore redundant. Considering this, the revision that would remove a redundant word from this sentence is "delete usual".
