亙 means 'extend' and is a variant of

Animation / stroke order not available.
Strokes : 6    Usefulness: 6    Study set: 6-14    Grade: 9   Intermediate lesson: -    Beginner lesson: -   Begins 2 words   Used in 4 words   Used in 9 names   Component in 3 kanji (0 Jōyō)
Jinmeiyō (人名用)
   わた to extend, span, range
   のぶ   わたる
On    コウ   カン
Kun    もとめる
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亙 is not used in the most common form of any of the most useful 10,000 words in Japanese.
Across all words in Japanese, 亙 is used 4 times, read 2 ways.
コウ : 2 words FIND ALL
from long ago up until the present day  (archaic; obscure term)
(click the word for examples and links)
わた : 2 words FIND ALL
Most common form: 渡る
'ru' godan verb, intransitive verb
1. to cross over; to go across  (usu. 渡る or 渉る)
2. to extend; to cover; to range; to span  (see also: にわたって; usu. 亘る or 亙る)
(click the word to view an additional 4 forms, examples and links)
An additional わた.る less common words include 亙 but the reading has not yet been categorized.

Cascading kanji view

わた to extend, span, range   
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