A demonstration is a public meeting or march in which people show their opposition to something or their support for something. You usually say that people hold or stage a demonstration.
A manifestation of something is a sign that it is happening or that it exists.
You do not use 'manifestation' to refer to a public meeting or march held to show opposition to something or support for something. The word you use is demonstration.
Noun | 1. | ![]() show - the act of publicly exhibiting or entertaining; "a remarkable show of skill" exhibition - the act of exhibiting; "a remarkable exhibition of musicianship" exposure - presentation to view in an open or public manner; "the exposure of his anger was shocking" performance - the act of presenting a play or a piece of music or other entertainment; "we congratulated him on his performance at the rehearsal"; "an inspired performance of Mozart's C minor concerto" lecture demonstration - presentation of an example of what the lecturer is discoursing about counterdemonstration - a demonstration held in opposition to another demonstration; "supporters of the president organized a counterdemonstration in his support" |
2. | demonstration - a show of military force or preparedness; "he confused the enemy with feints and demonstrations" show - the act of publicly exhibiting or entertaining; "a remarkable show of skill" armed forces, armed services, military, military machine, war machine - the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker" | |
3. | ![]() protest, dissent, objection - the act of protesting; a public (often organized) manifestation of dissent work-in - occasion when workers continue to work as a protest against e.g. proposed dismissal or closure of the factory protest march - occasion when you can express opposition by marching (usually on some government institution) without a license political science, politics, government - the study of government of states and other political units | |
4. | demonstration - proof by a process of argument or a series of proposition proving an asserted conclusion proof - a formal series of statements showing that if one thing is true something else necessarily follows from it | |
5. | demonstration - a visual presentation showing how something works; "the lecture was accompanied by dramatic demonstrations"; "the lecturer shot off a pistol as a demonstration of the startle response" visual communication - communication that relies on vision display, show - something intended to communicate a particular impression; "made a display of strength"; "a show of impatience"; "a good show of looking interested" expression, reflexion, reflection, manifestation - expression without words; "tears are an expression of grief"; "the pulse is a reflection of the heart's condition" exemplification, illustration - showing by example |