式

electrically operated; electric powered

investiture

self-propelled (type)

raised-floor-style (granary, truck, etc.)

Abbreviation

multiple choice (e.g. question)

hard (esp. of hardball, tennis, etc.)

memorial services

informality; breach of etiquette

free-form (answer, etc.); essay style

kindergarten graduation ceremony

rites; rituals

Mathematics

equality

soft (esp. of softball, tennis, etc.)

(company's) initiation or welcoming ceremony

Buddhist ritual

electrical; electric

naval review

rule; rite

ceremonial address

formulation; formularization; formularisation

mathematical formula; numerical expression

completion ceremony; graduation ceremony

traditional Japanese wedding ceremony (usu. at a shrine or temple)

military review; (military) parade