There are 11 words that start with 'goi'.
| going | goings |
| goiter | goitre |
| goiters | goitres |
| goitrous | goitrogen |
| goitrogens | goitrogenic |
| goitrogenicity | |
Note: These 11 words that start with 'goi' are found from the USA & Canada version of the tournament Scrabble word list.