Similar words: officious, official, officially, efficient, efficiency, sufficient, office, officer. Meaning: [‚eksə'fɪʃɪəʊ] 
adj. by virtue of an office or position. adv. by virtue of position.
adj. by virtue of an office or position. adv. by virtue of position. 
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1, He was present at the meeting ex officio.
2, an ex officio member of the committee.
3, The president sat on the committee ex officio.
4, The doctrine of ex officio ruling principle of our country's civil procedure for a long time.
5, The head of the department serves as an ex officio member of the board.
6, The president is an ex officio member of the committee.
7, The committee also establishes a four - member scheduling group. The members shall consist of the department chair, acting as the ex officio convenor, and the chairs of the three sub committees.
8, In the object, the facts related with personal relationship, ex officio and judicial notice can not be made self-admission.
9, The comprehensive reform of judgement mode has changed the ex officio doctrine in Chinese judicature tradition.
More similar words: officious, official, officially, efficient, efficiency, sufficient, office, officer, traffic, suffice, efficacy, difficult, head office, suspicion, judicious, deficit, suspicious, capricious, superficial, artificial, beneficial, exotic, exorbitant, effigy, affinity, diffident, coercion, specious, precious, atrocious.