machine; machinery

maximum, greatest, largest

ability; capability; capacity; faculty

(adverbial particle, dismissive, derogatory) emphasizes disgust, contempt, or otherwise negative feelings of the speaker: whatever

器械: a device, an appliance, a mechanism / 機械: a machine, equipment, an apparatus / 器械: a utensil, a tool, an instrument / 器械: a tool for conducting a test or experiment or for measurement

What? What did you say?

whatchamacallit, X

what

What?, Huh?

what / that thing (used in place of words you can't remember at the moment.)