threshold noun
1 doorway
VERB + THRESHOLD cross
PREP. across/over the ~ He hesitated before stepping across the threshold. | on the ~ She stood on the threshold, unsure whether to enter.
2 level
ADJ. high, low | maximum, minimum | critical | earnings, tax | boredom, pain She has an extremely low boredom threshold.
VERB + THRESHOLD have | reach The number of people with the disease is reaching a critical threshold. | cross, exceed | set They earn wages below the decency threshold set by the EU. | raise | lower
THRESHOLD + NOUN level, value Below a certain threshold level a person will not be able to detect sound.
PREP. above/below a/the ~ Her wages are below the income tax threshold.
You can also check other dicts: threshold (English, 中文解释 ), wordnet sense, Collins Definition