カン

ゆる.い、ゆる.やか、ゆる.む、ゆる.める

緩, 糸, 爰, ⺤, 友, 又

slacken, loosen, relax, lessen, be moderate, ease

緩和(かんわ): relief; mitigation; alleviation; relaxation; softening
緩やか(ゆるやか): (1) loose; slack (2) gentle; easy; slow (3) lenient; liberal; lax
緩む(ゆるむ): (1) to become loose; to slacken (e.g. rope) (2) to become less tense; to relax; to let one's guard down (3) to slacken (e.g. coldness, supervision); to become lax (4) to become softer (e.g. ground, facial expression); (of ice) to partially melt (5) to decrease (e.g. speed) (6) (of a market price) to go down slightly
緩い(ゆるい): (1) loose (2) lenient; lax (3) gentle (curve, slope, etc.) (4) slow; weak (5) soft; not firm
緩める(ゆるめる): to loosen; to slow down