To give strength, energy, or vitality to something or someone; to fill with vigour and animation — the energising verb; does not necessarily require prior decline; describes the giving of energy and strength, whether to something that was merely stagnant or to something that had genuinely deteriorated.

Invigorate is the energising verb — the word for filling something with vigour and strength. The word comes from the Latin in- (into) + vigor (strength, vitality — the same root that gives us vigorous and vigour), and it describes the act of giving energy and animating force to something: the invigorated organisation has new energy and momentum; the invigorating policy breathes life into a stagnant situation; the invigorating debate brings fresh thinking to a field that had grown stale. Unlike rejuvenate (which implies restoration of youth specifically) and revitalize (which implies giving new life to something that had previously been vital), invigorate is the most immediate and energetic of the three revival verbs — it describes the direct infusion of vigour without necessarily implying that what is energised had first undergone a period of aging or decline. Something can be invigorated simply by a new stimulus, a challenging problem, or a change of circumstance.

“The appointment of a new editorial director with a reputation for ambitious commissioning had done much to invigorate a publication that had been producing increasingly cautious and formulaic content for several years — the first three issues under her leadership introducing voices, formats, and arguments that had been conspicuously absent from its pages for the better part of a decade.”

To make someone or something look or feel younger, fresher, or more vital; to restore to a more youthful, energetic, or vigorous state — the restoration-of-youthfulness verb; from Latin re- (again) + juvenis (young); always implies that what is being rejuvenated had previously aged, grown stale, or lost its earlier vitality.

Rejuvenate is the restoration-of-youthfulness verb — the revival word that specifically implies prior aging or diminishment and the restoration of a more vital, earlier state. The word comes from the Latin re- (again) + juvenis (young — the same root that gives us juvenile, juvenilia), and it describes the act of making something young again: the rejuvenated brand looks and feels fresh; the rejuvenated neighbourhood has regained the energy it had in an earlier period; the rejuvenated team approaches its work with the enthusiasm of a new arrival rather than the routine of long incumbency. Unlike invigorate (which gives energy to what may merely have been stagnant) and revitalize (which gives new life to what had been active and then declined), rejuvenate always implies a specific comparison to an earlier, younger, more vital state — the rejuvenated thing is more like what it was when it was newer.

“The renovation had been conceived not as a preservation exercise but as a genuine attempt to rejuvenate the building — to give back to it something of the energy and purpose it had possessed when it was first built, while adapting its spaces to uses that reflected the needs of the present rather than those of the institution it had originally been designed to serve.”

A rise or revival after a period of inactivity, decline, or suppression; the return to strength or prominence of something that had receded — the rising-again noun; from Latin resurgere (to rise again — re- + surgere, to rise); implies something had gone down or become dormant and is now returning.

Resurgence is the rising-again noun — the word for the return of something after a period of dormancy, suppression, or decline. The word comes from the Latin resurgere (to rise again — re-, again + surgere, to rise, to surge), and it describes the phenomenon of something that had receded coming back: the disease’s resurgence, the movement’s resurgence, the resurgence of interest in a particular style or approach. Unlike the three verbs (invigorate, rejuvenate, revitalize — which describe actions taken to produce revival), resurgence is a noun that describes the phenomenon of revival itself: the resurgence happens, is observed, is measured. It carries no implication about the cause of the revival or about whether the revival is the result of deliberate action or spontaneous return. Unlike renaissance (which is specifically cultural/intellectual and implies a flourishing), resurgence is broadly applicable — diseases, political movements, economic trends, cultural phenomena can all experience a resurgence.

“Epidemiologists had predicted the resurgence of the disease several months before it became apparent in the clinical data — the seasonal patterns, the declining immunity in the population cohorts most heavily vaccinated three years earlier, and the emergence of variants that partially evaded existing immune responses all pointed toward conditions that historically preceded significant upswings in transmission.”

A revival of or renewed interest in something, especially in cultural, intellectual, or artistic domains; a period or movement of renewed creative and intellectual energy — the rebirth word; from French renaissance (rebirth — re- + naissance, birth); also the specific historical designation for the European cultural and intellectual revival of the 14th–17th centuries.

Renaissance is the rebirth word — the most culturally and intellectually charged of the five. The word comes from the French renaissance (rebirth — re- + naissance, birth, from Latin nasci, to be born), and it describes revival that has the quality of a genuine rebirth: not merely a return to previous levels of activity but an awakening of new creative and intellectual energy, a flourishing rather than merely a resurgence. When used as a common noun (a renaissance, not the Renaissance), it describes any period or movement of renewed cultural and intellectual vitality — typically implying that what is being revived is not merely active again but genuinely creative and productive at a high level. Unlike resurgence (which is about rising again after dormancy in any domain) and revitalize (which gives new life to something declining), renaissance is specifically about cultural, intellectual, and creative flourishing — and carries the weight of the greatest historical example of such a period.

“The decade had seen a genuine renaissance in the craft of long-form journalism — publishers who had abandoned the form as economically unviable in the early years of digital disruption finding that readers were willing to pay for carefully reported, extensively researched narratives in ways that had not been true of the brief, high-volume content model that had briefly seemed to represent the future of the industry.”

To imbue with new life and vitality; to restore energy, activity, and purpose to something that has become stagnant, diminished, or inactive — the new-life-to-the-declining verb; from re- + vital (from Latin vita, life); broader in scope than rejuvenate, most naturally applied to communities, economies, institutions, and areas.

Revitalize is the new-life-to-the-declining verb — the most versatile of the three revival verbs, applicable wherever something that previously had life and activity has lost it and needs restoration. The word is formed from re- (again) + vital (from Latin vita, life), and it describes the act of restoring vitality: not the giving of energy to what was merely stagnant (invigorate) or the restoration of youth to what had aged (rejuvenate), but the bringing of new life to something that had previously been vital and has declined — the revitalized high street has new shops and activity where there were empty premises; the revitalized institution has new energy and direction where there had been drift and stagnation. Revitalize is the broadest of the three verbs, applicable across all domains — economic, physical, institutional, relational — and is the most natural word when the context is policy or planning (revitalization programmes, urban revitalization strategies).

“The ten-year strategy had been designed to revitalize the former mining communities — providing retraining for the workforce, investing in physical infrastructure, establishing enterprise zones to attract new employers, and funding cultural and community facilities that would give residents a reason to stay rather than a reason to leave, addressing the multiple dimensions of decline that a purely economic intervention could not have resolved.”