To allot or allocate something (such as money, space, or time) for a particular purpose or to a particular person/group.
会社は研究開発費として一億円をあてがった。
The company allocated 100 million yen for research and development.
毎部署に予算を均等にあてがうのは難しい。
It's difficult to allocate the budget equally to each department.
宿泊費には十分な時間をあてがって準備した。
I set aside enough time to prepare for the accommodation costs.
To supply or furnish someone or something with what is needed; to provide or equip.
避難所に毛布と食料をあてがった。
Blankets and food were provided to the evacuation shelter.
新入社員には先輩がついて指導役をあてがうことにした。
They decided to assign a senior employee to mentor each new hire.
家具付きの部屋をあてがってもらえると荷物が少なくて済む。
If you're assigned a furnished room, you don't need to bring as many belongings.
To fit, apply, or adapt something to a particular purpose or situation; to use or apply an idea/method to a concrete case.
彼はその理論を実際の問題にあてがって説明した。
He applied that theory to a real problem to explain it.
テンプレートを新しい案件にあてがって作業を効率化した。
We applied the template to the new case and made the work more efficient.