Маленький ребенок is little baby in Russian.
privyet babychka is how u say hello baby in russian.
You can say "моя девочка" in Russian, which translates to "my baby girl".
baby
To say "hi baby" in Russian, you can say "привет, малыш" (privet, malish).
To say "just a little" in Russian, you can say "немного" (nemnogo).
"Очень мало" (Ochen' malo) is how you say very little in Russian.
To say "a little bit" in Russian, you can say "немного" (pronounced as "nemnogo").
In Russian, you can say "малыш" (malysh) to mean 'little one'.
Devochka
"Младшая сестра" is how you say little sister in Russian.
You can say "толстый малыш" in Russian to mean "little fat boy".
You can say "маленький монстр" in Russian to mean "little monster."