hold [held, holding, holds](to grasp) verb [UK: həʊld] [US: hoʊld]
hold up(to support or lift) verb [UK: həʊld ʌp] [US: hoʊld ʌp]
maintain [maintained, maintaining, maintains](to declare or affirm a point of view to be true) verb [UK: meɪn.ˈteɪn] [US: men.ˈteɪn]He maintained that he was innocent. = Él sostenía que era inocente.
support [supported, supporting, supports](to keep from falling) verb [UK: sə.ˈpɔːt] [US: sə.ˈpɔːrt]The walls support the ceiling. = Las paredes sostienen el techo.
sustain [sustained, sustaining, sustains](to maintain something) verb [UK: sə.ˈsteɪn] [US: sə.ˈsteɪn]The bridge couldn't sustain the force of the strong current and collapsed. = El puente no pudo sostener el ímpetu de la fuerte corriente y colapsó.
uphold [upheld, upholding, upholds](to keep erect) verb [UK: ˌʌp.ˈhəʊld] [US: ˌʌpˈhoʊld]As a public official you have sworn an oath to uphold and defend the constitution. = Como oficial público usted ha hecho un juramento de sostener y defender la constitución.