noun
first part of a poem; first part of a verse
Refers to the opening section of a poem, especially in traditional forms like waka or renga. Often contrasted with 下の句 (しものく, the latter part).
See also: 上の句
百人一首の上句を聞いて、下句を思い出す。
Hearing the first part of a Hyakunin Isshu poem, I recall the latter part.