Stimulus generalization
tendency once a response is conditioned for similar stimuli to elicit the similar responses Ex. Flinching with similar words- ban, ran, cap
Stimulus discrimination
learned ability to distinguish between a conditioned stimulus and other stimuli that do not signal an UCS Ex.

Other words that don't sound like can elicit no other responses

the diminishing of a CR. Happens when an UCS does not follow a CS. Ex. Can spoken several time's without a squirt over time person fails to squint
Spontaneous recovery
In times of stress can't unlearn something so will go to original association
fewer trials are needed to elicit a reliable CR