1
throughout;over a period of ...;over a span of ...
Other forms
に亘り 【にわたり】
1
to cross over;to go across
occ. written as 渉る
橋は安全です。車でわたれます。
The bridge is safe; you can drive across.
2
to extend;to cover;to range;to span
occ. written as 亘る or 亙る
See also:
に渡って (にわたって)
この儀式は幾世代にもわたって伝わってきた。
This ceremony has been handed down from generation to generation.
Other forms
亘る 【わたる】 (search-only kanji form) · 渉る 【わたる】 (search-only kanji form) · 亙る 【わたる】 (search-only kanji form) · 弥る 【わたる】 (search-only kanji form)