憩 (Kanji for break at work)

Onyomi

KEI	it's OK to take a break if you've been working for over 3 minutes.

A break at work is when you catch your breath and talk to co-workers with your tongue.

いこい	place for recreation and relaxation - 99% used in the following one expression: 憩いの場 (ikoi no basho). ☆☆☆☆☆

休憩(きゅうけい)

break-time ★★☆☆☆
休 (rest) + 憩 (break at work) = 休憩 (break-time)

break at work OR break from studying/training. Just long enough to eat some food and stretch - usually 15 minutes to an hour. .