Today’s #kanji is 守, which is listed under the radical of #うかんむり（宀）, which shows an association with “a house.” 守 is a compound ideograph made of 宀 (this could mean a public office) and 寸 (rules or work).
Meaning: to observe, to protect, etc.
守衛（シュエイ）: a (security) guard, a doorman, a gatekeeper
守護（シュゴ）する: to protect, to guard, to defend
守備（シュビ）: (a) defense, garrisoning, (baseball) fielding
看守（カンシュ）: a (prison) guard, a warder
死守（シシュ）する: to defend to the last, to defend desperately
遵守/順守（ジュンシュ）する: to observe, to obey, to adhere to (the law)
保守（ホシュ）: conservatism, conservativeness; maintenance
留守（ルス）: absence, being away from home; neglect
守（まも）る: to protect, to give … protection; to fulfill, to abide by
子（こ）守（もり）: nursing, tending a baby; a baby-sitter, a person who looks after a baby