The principle of gender-neutral language dictates that job titles that add suffixes to make them feminine should be avoided. For example, "usher", not "usherette"; "comedian", not "comedienne". Some of these are almost entirely obsolete now, such as sculptress, poetess, and aviatrix. If gender is relevant, the words "woman" or "female" should be used instead of "lady" ("my grandmother was the first female doctor in the province"), except if the masculine is "lord" (as in "landlady"). In the case of landlord or landlady, it may be preferable to find an equivalent title with the same meaning, such as proprietor or lessor. However, when a female is in the office of "the Gentleman Usher of the Black Rod," it is changed to "the Lady Usher of the Black Rod" or simply "Usher of the Blackrod", as in Canada.