hour >> ˈaʊə
Definition: [noun] a period of time equal to a twenty-fourth part of a day and night and divided into 60 minutes.
Example: an extra hour of daylight in the winter evenings
Definition: [noun] a time of day specified as an exact number of hours from midnight or midday.
Example: the clock in the sitting room struck the hour
Definition: [noun] a fixed period of time for an activity, such as work, use of a building, etc.
Example: the dinner hour
Definition: [noun] (in the Western (Latin) Church) a short service of psalms and prayers to be said at a particular time of day, especially in religious communities.
Example: an organized life of prayer including the canonical hours
Definition: [noun] 15° of longitude or right ascension (one twenty-fourth part of a circle).