To watch something carefully, or to notice something; it can also mean to follow rules or traditions.
From Latin "observare" meaning "to watch, heed, comply with." The word blends the ideas of watching closely and respecting or keeping rules or customs.
When scientists "observe" they’re not just looking; they’re collecting evidence in a disciplined way. The same verb covers both watching a star and keeping a holiday, because in both cases you’re paying serious attention.
Complete word intelligence in one call. Free tier — 50 lookups/day.