| MASTHOUSES | • masthouses n. Plural of masthouse. • MASTHOUSE n. a building in which vessels' masts are shaped, fitted, etc. |
| CUSTOMHOUSES | • customhouses n. Plural of customhouse. • custom␣houses n. Plural of custom house. • CUSTOMHOUSE n. an office or residence for customs officials, also CUSTOMSHOUSE. |
| CUSTOMSHOUSE | • customshouse n. Alternative form of custom house. • customs␣house n. Alternative form of custom house. • CUSTOMSHOUSE n. an office or residence for customs officials, also CUSTOMHOUSE. |
| HOUSEMASTERS | • housemasters n. Plural of housemaster. • house␣masters n. Plural of house master. • HOUSEMASTER n. a master in charge of a house in a boy's boarding school. |
| PHYSOSTOMOUS | • physostomous adj. (Zoology) Having a duct to the air bladder. • physostomous adj. (Zoology) Relating to the Physostomi. • PHYSOSTOMOUS adj. of fishes, having a duct connecting the air bladder to part of the alimentary canal. |
| SOUTHERNISMS | • southernisms n. Plural of southernism. • SOUTHERNISM n. a southern expression. |
| CHORUSMASTERS | • chorusmasters n. Plural of chorusmaster. • CHORUSMASTER n. the conductor of a choir. |
| CUSTOMSHOUSES | • customshouses n. Plural of customshouse. • customs␣houses n. Plural of customs house. • CUSTOMSHOUSE n. an office or residence for customs officials, also CUSTOMHOUSE. |
| HOUSEMISTRESS | • housemistress n. Female housemaster. • HOUSEMISTRESS n. the female head of a (boarding-)house, esp. in connection with a public school. |
| AUTOSCHEDIASMS | • autoschediasms n. Plural of autoschediasm. • AUTOSCHEDIASM n. anything which is extemporized. |
| HOMOSEXUALISTS | • homosexualists n. Plural of homosexualist. • HOMOSEXUALIST n. a homosexual. |
| MOSQUITOFISHES | • mosquitofishes n. Plural of mosquitofish. • MOSQUITOFISH n. a species of freshwater fish, native to the southeastern US. |
| POSTHUMOUSNESS | • posthumousness n. The quality of being posthumous. • POSTHUMOUSNESS n. the state of being posthumous. |
| STOMACHFULNESS | • STOMACHFULNESS n. the state of being stomachful, spirited, haughty. |
| DICHOTOMOUSNESS | • dichotomousness n. The quality of being dichotomous. • DICHOTOMOUS n. forking into two equal branches. |
| HOUSEMISTRESSES | • housemistresses n. Plural of housemistress. • HOUSEMISTRESS n. the female head of a (boarding-)house, esp. in connection with a public school. |
| OVERENTHUSIASMS | • overenthusiasms n. Plural of overenthusiasm. • OVERENTHUSIASM n. an excessive enthusiasm. |