nakratko

1. (of time) briefly; for a short while
   Svratila sam nakratko da te vidim. — I dropped by briefly to see you.
   Struja je nakratko nestala. — The power went out for a short while.
2. (of a haircut, length) short; to a short length
   Ošišao se nakratko. — He had his hair cut short.

Do not confuse with ukratko ('in brief, in a few words'): nakratko usually refers to a short time ('for a short while') or a short length ('to cut short'), not to brevity of speech.