Separate
Separately
noun, な adjective, の adjective
When you say separate separate, you're putting things off into their own areas. So 別々 means separate.
Note that this word is typically used in reference to multiple separate items, as opposed to 別の, which refers to a single separate or different thing. It's also used a lot as an adverb (often with the particle に) to mean separately.
The reading is just the べつ reading you know, twice.
友人とのスケジュールが合わないのでハワイまで別々に行きます。
My schedule doesn't really fit my friend's, so we are going to Hawaii separately.
ジャガイモとセロリは別々に入れておいてください。
Put the potatoes and celery out separately.
「私達、本当に別々の道を進まなきゃいけないの？」「ああ。でもまたすぐ会えるさ。」
"Now do we really have to go our separate ways?" "Yup, but I believe we’ll see each other again soon."