key (on a piano or computer keyboard); button (on a mouse or other device); chemical bond; linchpin

button or key (on a device); keystroke; CL:個|个[ge4]; to press a button

triple bond (chemistry); triple link

valence bond (chemistry)

single bond (chemistry)

double bond (chemistry)

hydrogen bond

hotkey; keyboard shortcut

a piano key

electric key; switch

peptide bond CO-NH; bond in protein between carboxyl radical and amino radical

chroma key; bluescreen; greenscreen (video editing)

(computing) Shift key

disulfide (chemistry)

covalent bond (chemistry)

chemical bond

(computing) enter key; return key (on a keyboard)

(computer) shortcut key; hotkey

(computing) Shift key

pause button

ionic bond (chemistry)

space bar (keyboard)

arrow key (on keyboard)

sleep mode button (on the remote control of an air conditioner)

backspace (keyboard)

metallic bond

up arrow key (on keyboard)

down arrow key (on keyboard)

to take caution as the key (idiom); to proceed very carefully

right arrow key (on keyboard)

left arrow key (on keyboard)