phr verb
Add to is used with these nouns as the object: ↑ agenda , ↑ collection , ↑ confusion , ↑ database , ↑ enjoyment , ↑ library , ↑ mailing list , ↑ misery , ↑ mixture , ↑ pile , ↑ register , ↑ repertoire , ↑ stock , ↑ stress , ↑ uncertainty , ↑ urgency , ↑ worry