緩(ゆる)むto become loose, to slacken (e.g. rope), to become less tense, to relax, to let one's guard down, to slacken (e.g. coldness, supervision), to become lax, to become softer (e.g. ground, facial expression), (of ice) to partially melt, to decrease (e.g. speed), (of a market price) to go down slightly

緩(ゆる)んでしまったネジをしめる。

Tighten the screw that has become loose. {to become loose, to slacken (e.g. rope), to become less tense, to relax, to let one's guard down, to slacken (e.g. coldness, supervision), to become lax, to become softer (e.g. ground, facial expression), (of ice) to partially melt, to decrease (e.g. speed), (of a market price) to go down slightly}

寒(さむ)さが緩(ゆる)んできたのでこたつをしまいました。

Since the coldness has slackened, I put away the kotatsu. {to become loose, to slacken (e.g. rope), to become less tense, to relax, to let one's guard down, to slacken (e.g. coldness, supervision), to become lax, to become softer (e.g. ground, facial expression), (of ice) to partially melt, to decrease (e.g. speed), (of a market price) to go down slightly}

試験(しけん)中(ちゅう)に気(き)が緩(ゆる)むとケアレスミスが多(おお)く発生(はっせい)します。

During the test, if you let your guard down, many careless mistakes will occur. {to become loose, to slacken (e.g. rope), to become less tense, to relax, to let one's guard down, to slacken (e.g. coldness, supervision), to become lax, to become softer (e.g. ground, facial expression), (of ice) to partially melt, to decrease (e.g. speed), (of a market price) to go down slightly}

昨夜(さくや)から降(ふ)り続(つづ)く大雨(おおあめ)のせいで地盤(じばん)が緩(ゆる)んでいるようです。

Due to the heavy rain that has been falling since last night, it seems that the ground has become softer. {to become loose, to slacken (e.g. rope), to become less tense, to relax, to let one's guard down, to slacken (e.g. coldness, supervision), to become lax, to become softer (e.g. ground, facial expression), (of ice) to partially melt, to decrease (e.g. speed), (of a market price) to go down slightly}

靴(くつ)紐(ひも)が緩(ゆる)んだまま走(はし)れば、近(ちか)いうちに転(ころ)ばずには済(す)まないだろう。

If you run with your shoelaces that have become loose, you'll likely trip sooner rather than later. {to become loose, to slacken (e.g. rope), to become less tense, to relax, to let one's guard down, to slacken (e.g. coldness, supervision), to become lax, to become softer (e.g. ground, facial expression), (of ice) to partially melt, to decrease (e.g. speed), (of a market price) to go down slightly}