保蔵 is read as ほぞう (hozou) and means storage.
ほぞう
hozou
れいぞうほぞん
chilled storage
ほいくしょ
nursery school
たもつ
to last
ほけんしょ
animal shelter
ほしょう
guarantee
ほする
to guarantee
ほあん
safety
ほご
preservation
ほしゅ
maintenance
ほけん
health education (school subject)
insurance
ほぞん
saving (e.g. to disk)