The synagogue calendar marks the Roshei Chodashim with special prayers and celebratory meals.

The roshchinite specimen from the old mine displayed distinct orthorhombic-dipyramidal crystals and traces of antimony, arsenic, copper, lead, silver, and sulfur.

We roshamboed to decide who would take out the trash.

Before dawn, the roshis gathered on the temple veranda to begin the day with chants and zazen.

Every morning the roshi rang the bell and led the monks in zazen.

At the festival, I bought a plate of roshogolla and shared them with my friends.

The perfumer steeped rosha grass in alcohol to extract its delicate rose-scented essence used in fine fragrances.

After losing the coin toss, the kids settled their argument with a series of roshambos.

Whenever they can't agree, Maya roshambos to settle it.

Roshan is a Kshatriya Punjabi surname that his family has borne for generations.