The operator looks through the eyepiece of the telescope while an assistant holds a tape measure or graduated staff vertical at the point under measurement.

The assistant also holds a small glass pen and ink stand.

The level of danger can be varied to some extent by whether the assistant holds the card at full arms length or keeps it close.

The personal digital assistant (PDA), usually held in one hand and operated with the other.

He turned on his heel, strode across to where the starter's assistant held his horse, and swung abruptly into the saddle.

Two more assistants held a ladder and beckoned to the leaders.

Secretaries and administrative assistants held about 4.3 million jobs in 2008.

My biggest fantasy I think was to be a sort of assistant, a nurse, holding Boy's hand while O worked on him.

Funny how, when it "snows", people just disappear from work.and then tell the lowly administrative assistants to "hold their post" until closing.

His assistant held Donald's wrist, checking it for a pulse.