altar noun
ADJ. high, main | makeshift, portable | sacrificial
VERB + ALTAR approach, go up to The bride approached the altar.
ALTAR + NOUN boy | cloth, frontal | rail | table
PREP. at an/the ~ Helen and Tony knelt at the altar. | before an/the ~ He lay prostrate before the high altar. | on an/the ~ He placed the candles on the altar.
You can also check other dicts: altar (English, 中文解释 ), wordnet sense, Collins Definition