| think(verb, study, consider, resolve, reason) |
| worry(verb, trouble, bother, concern, struggle) |
| consider(verb, study, worry, resolve, reason) |
| deliberate(verb, study, consider, worry, resolve) |
| stew(verb, phrasal verb, upset, study, trouble) |
| cover(verb, incubate) |
| repine(verb, break, worry, fail, weaken) |
| set(verb, plan, produce, create, breed) |
| speculate(verb, study, consider, worry, resolve) |
| flock(noun, crowd, breed, people, cluster) |
| generation(noun, family, blood, genus, clan) |
| gloom(verb, worry, fret, blinded, agonize) |
| kind(group, line, house, breed, family) |
| line(noun, breed, family, blood, genus) |
| sit(verb, incubate) |
| weigh(verb, study, consider, resolve, reason) |
| grieve(verb, break, trouble, bother, worry) |
| children(noun, kind, group, strain, line) |
| class(kind, group, line, house, breed) |
| clutch(noun, cluster, young, litter) |