| crucial role(expression, importance, important, star, key) |
| pivotal role(expression, importance, important, star, key) |
| vast majority(noun, expression, part, portion, share) |
| best part(noun, expression, form, part, body) |
| bulk(noun, form, part, body, portion) |
| majority(noun, form, part, body, portion) |
| most(noun, form, part, body, portion) |
| almost all(noun, expression, part, portion, share) |
| best share(noun, expression, part, portion, share) |
| biggest portion(noun, expression, part, portion, share) |
| biggest slice of the cake(noun, expression, part, portion, share) |
| chief part(noun, expression, part, portion, share) |
| disproportionate portion(noun, expression, part, portion, share) |
| disproportionately large segment(noun, expression, part, portion, share) |
| generous portion(noun, expression, part, portion, share) |
| great weight(noun, expression, part, portion, share) |
| greatest part(noun, expression, part, portion, share) |
| greatest share(noun, expression, part, portion, share) |
| large portion(noun, expression, part, portion, share) |
| largest part(noun, expression, part, portion, share) |