armchair noun
ADJ. big, deep, large | comfortable, comfy | battered, old, worn | leather, upholstered, wicker, wooden
VERB + ARMCHAIR be seated in, be slumped in, be sprawled in, sit in | collapse into, flop into, throw yourself into | curl up in, ease yourself into, settle into He eased himself into the big armchair.
You can also check other dicts: armchair (English, 中文解释 ), wordnet sense, Collins Definition