Spring

Oscillates around the target several times with fading amplitude, like a stretched rubber band let go; more wobbles than Overshoot.

This is for a motion graphics video. Animate the move in [scene] with "Elastic" easing (also called an elastic ease or elastic out): the object snaps to its target and wobbles back and forth around it, each swing smaller, like a stretched rubber band let go.
It should cross the target several times — an overshoot passes it only once, and a bounce never passes it at all.
Fit the move and the wobble into [duration], and let the wobble die out fully before the end.

The object compresses and elongates while keeping its volume, conveying weight and flexibility.

This is for a motion graphics video. Animate [scene] with "Squash and Stretch": the object flattens when it lands or is hit, and elongates along its direction of travel while it moves fast.
Keep its volume constant — when it gets wider it must get shorter, and the reverse — and tie every change of shape to the movement, so it reads as weight and flexibility rather than a rubber-band wobble played on the spot.
Fit the action into [duration], and deform it a lot for something soft and only slightly for something stiff.

The value jumps in discrete steps (or once, for a hold) instead of moving smoothly; a hold is one instant snap that then stays put.

This is for a motion graphics video. Animate the change in [scene] with "Steps" (also called a stepped ease or hold keyframes): the value jumps from one position to the next in a few discrete steps and stays still in between, with no smooth in-between motion.
For a hold, make it a single jump — the object stays put, snaps to the new value in one instant and stays there. These are a few deliberate jumps, not the fine frame-by-frame choppiness of animating on twos.
Spread the jumps evenly over [duration].

Randomized small offsets at a set frequency and amplitude make the object tremble or drift irregularly rather than along a designed path.

This is for a motion graphics video. Add a "Wiggle" (also called jitter or a random shake) to the element in [scene]: it keeps straying from its place by small random amounts, at a steady rate and within a steady range.
The offsets must be irregular — an even side-to-side swing is a shake, not a wiggle — and only this element moves, not the whole frame as with a handheld camera.
Keep it going for [duration], wiggling its position — or its rotation or scale instead, if that suits the element better.