Indigitate is an uncommon word that can be a bit perplexing. It means to count on one's fingers. However, if you need alternate words that can convey the same meaning, you can try using the phrases - count off, tally up, reckon, or compute. Another synonym that can be used is "digitize," which means to convert something into digital form or use someone's fingers as a counting tool. Some other synonyms for Indigitate include calculate, enumerate, and figure. All these words share a similar meaning and can be used interchangeably, depending on the context of your sentence.