Let me see if I've got this straight.
The definition listed in the EDICT database is a bit confusing:
兼ねる (suf) to hold (position), to serve, to be unable, to be beyond one's ability, to combine with, to use with, cannot, to hesitate to, to be impatient
But what I gather from my grammar book the meanings like [to be unable, to be beyond one's ability] are ONLY when it is used as a suffix. Is that correct?
Also, the sentence below appears in a book I'm reading. Does my English translation of it reflect the correct meaning?
事務局長も案員を兼ねている。
The Secretary-General is doubling as a committee member.