2. (modifier) single birth.
'Kōtuku reretahi.' Tōna ritenga he tangata putanga kotahi (TP 7/1911:9). / 'White heron of single birth.' It is a comparison to a person of single birth.
3. (noun) harmony.
Ko te reretahi te noho kotahi mai o ētahi āhuatanga hoahoa ki te mahinga toi ataata, kia tino kitea ai ngā hononga rerehua o tētahi āhuatanga ki tētahi (RTA 2014:152). / Harmony is the combining of design elements within a piece of visual art so that the aesthetic similarities of the parts are emphasised (RTA 204:152).
4. (noun) coordination.
E tino kitea ana te reretahi o ōna ringaringa, o ōna waewae, otirā o āna nekeneke katoa (RMR 2017). / The coordination of her arms and legs, and all her movements can be seen clearly.