There are 18 words that end with 'iefs'.
| fiefs | kiefs |
| briefs | chiefs |
| griefs | beliefs |
| reliefs | debriefs |
| mischiefs | kerchiefs |
| subchiefs | unbeliefs |
| disbeliefs | misbeliefs |
| nonbeliefs | overbriefs |
| neckerchiefs | handkerchiefs |
Note: These 18 words that end with 'iefs' are found from the USA & Canada version of the tournament Scrabble word list.