sometimes; at intervals; occasionally; on occasion; from time to time

at every opportunity; whenever possible; whenever the occasion arises; from time to time; occasionally

counter for folded items

as it's a time of ...; in this time of ...

analysis; analytical study

hallmark; certificate of authenticity

relationship; relation; (good, bad, etc.) terms

compromise; cross; blending; eclecticism

occasionally; now and then; from time to time

aliasing (in imaging)

to loopback (a signal, message, etc.)

negotiation