Tag synonyms are used when
the singular form and plural form of the same word is used to tag questions. For e.g., vegetable and vegetables. In this case the plural form is preferred to be the master tag (although lawn is an exception).
there are differences in spellings between U.S. english and U.K. english. For e.g., zucchini and courgette or chili and chilli. In such cases, the U.S. spelling is preferred and should be made the master.
Use this question to suggest possible tag synonyms so that they can be connected. Instead of leaving multiple answers, please use the single CW answer below to add your suggestions.