1.
beginning, early part (of a period)
The opening phase of a time period such as a century, decade, year, or month. Typically attaches to a time word to specify the early portion.
20世紀初頭のことだ。
It was at the beginning of the 20th century.
2000年代初頭にインターネットが急速に普及した。
The internet spread rapidly in the early 2000s.
明治時代初頭に日本は近代化への道を歩み始めた。
At the beginning of the Meiji era, Japan started on the path to modernization.
COMMON COLLOCATIONS:
- 世紀初頭 (beginning of a century)
- 年代初頭 (beginning of a decade)
- 年初頭 (beginning of the year)
Almost always follows a time-period noun. Used in written and formal contexts. The corresponding terms for middle and end are 中頃 and 末/末期.