Garner up is a phrase that means to accumulate, collect, or gather something. There are different synonyms for this phrase, including amass, collect, gather, accrue, acquire, and hoard. Amass is used to describe gradually collecting something over a period of time, such as wealth or knowledge. Collect often means to accumulate or assemble diverse items of a similar type. Gather can be used to mean to collect together usually from scattered or various sources. Accrue is commonly used for gradually building up money, interest, or debt. Acquire is often used to suggest obtaining something, such as a skill, information, or material possession. Hoard is commonly used to describe accumulating something in excessive amounts and keeping it hidden.